LS Series Crate Engine Control System
Contents
1. The 3 ECM connectors are indexed to connect only in the correct locations Install by pressing down firmly until the connector is seated then pull the top slider bar down until it snaps and locks into place The bar should slide easily and will not move unless the connector is seated properly do not use excessive force Attach the harness ground eyelets 3 total to the engine block ensuring the connections are clean and secure and attach the fuel pump wire from the fuse relay center to the power side of the pump this feed is fused and relay controlled from the ECM Make sure all intended engine and vehicle side connections have been made before proceeding to connect power Attach a 12 volt ignition switch feed from the vehicle to the pink ignition switch wire in the harness this is required to enable the proper power up sequence of the ECM This can be routed into the passenger compartment with the accelerator pedal connector and diagnostic link connector Next connect battery power minimum 8 gauge wire to the horizontal stud on the fuse relay center The other two studs are for accessories and are 50 amp fused and the harness installation is complete Additional features and bulkhead connector descriptions are also included below System Features e The Fuse Relay center contains all required fuses and relays for proper engine operation Spare fuse and relay openings are provided for possible future customer use e2. before attempting start the vehicle Note that if the engine will not come off idle after the control system installation check for an illuminated MIL malfunction indicator light which is located in the fuse relay center sometimes called the Check Engine Light or Service Engine Soon light which indicates stored fault codes Check for codes and make any required repairs if the MIL is illuminated typically it is a connector issue or a wiring issue consult a service manual if necessary Use information from Chevrolet Performance Parts Diagnostics 2006 2011 Cadillac CTS 2006 2010 Corvette or 2010 2011 Camaro Observe all safety precautions and warnings in the service manuals when installing this package in any vehicle Wear eye protection and appropriate protective clothing Support the vehicle securely with jack stands when working under or around it Use only the proper tools Exercise extreme caution when working with flammable corrosive and hazardous liquids and materlals Some procedures require special equipment and skills If you do not have the appropriate training expertise and tools to perform any part of this conversion safely this work should be done by a professional System DOs and DON Ts Do e Ensure all intended engine vehicle side connections are made before connecting ignition or battery power to the system e Ensure the wiring harness is secured as required and that the routing avoids lo
3. A 1868 Yellow Black Crank Sensor Ground Pos B C e a Gpe eeror 1704 28 Pink Black Fuse Cavity 8J 22 Orange Generator Pos B T S Th 3212 15 22 Lt Green Even Fr 02 Pos E 1745 32 22 Lt Green Black Injector 2 Pin B 469 23 22 Orange Black MAPPosA az a 2 omg oss Co Pos V E e a Caan a 2 oen ossCoiPosc 2a as an ECT Pos ECESO a ear WAP Pos Orange Cam Sensor Power Pos A Green Fuse Bus Pos 7D Engine Coolant Sensor MAF Pos D 410 55 22 Yellow Pos 2 1867 E 3 22 T Lt green Crank Sensor Signal Pos C 22 Lt Green MAP Pos B 1688 ZARA Lt Blue Black ETC Pos E e i Purple White VSS TOSS Hi Pos 2 Pin E 878 48 22 Blue White Injector 8 Pin B Black a tal a lee eee 750A 73 14 Black Ground 846 52 22 YellowBlack Injector6 PinB sd All Other Positions to have Cavity Plugs 2122 53 22 Red White Even Coils Pos B 2126 54 22 Lt Blue White Even Coils Pos F mme 19171935 ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 DATE REVISION AUTH WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES PERFORMANGE VEHICLES PARTS RACING O These specifications are intended as a supplement to GM service manuals It is not the intent of these specifications to replace the comprehensive and detailed service practices explained in the GM service manuals The information contained in this
4. There are two ports on the engine that make up the PCV system The ports on the engine are 1 Left rear driver side valve cover 2 Top center of the inlet manifold The ports with silver tubes may look simple but they should not be modified The tubes have a small orifice within them that is used in place of a PCV valve of earlier designs There is one fresh air port which is on the front of the right passenger side valve cover Again this is a silver tube that faces forward on the valve cover This port should be connected to filtered clean air This connection must be within the engines air cleaner system and must be between the MAF Mass Air Flow Sensor and engine s throttle body The engine burns the air that enters the PCV system so if the fresh air port is prior to the MAF then this air will enter the engine without being measured by the MAF and adverse engine operation may occur Power Brake Booster Vacuum Source The vacuum port for the Brake Booster is a plug in the rear of the intake manifold If you need the vacuum source for your brake system the plug needs to be removed and you will need fitting 12559760 available from any GM dealer Oil Pressure Sensor If your harness connector does not fit your oil pressure sensor you can purchase sensor p n 12616646 or equivalent This is an optional connection and is not required for your control system to operate Engine Wiring Harness The following lists the engine and vehi
5. downward MAF SENSOR MOUNTING GUIDELINES MINIMUM 6 STRAIGHT SECTION TOAIR FILTER Air Cleaner It is recommended that a dry element air cleaner be used NOTE Fueling cannot be guaranteed if an oiled element type air cleaner is used Oxygen Sensors NOTE It is critical that the Oxygen Sensors are mounted per the instructions below The exhaust system MUST be properly sealed any leak near the sensors upstream or down stream can cause incorrect operation of the fuel control system Vehicle performance and or driveability may be affected if sensors are not mounted as recommended or if an exhaust leak exists Leak check the exhaust system to ensure adequate sealing even small leaks can affect fuel control Oxygen Sensors should be mounted in the collector area of the ex haust manifolds in a location that allows exhaust from all cylinders to be sampled equally stock exhaust manifolds include a mounting boss for the oxygen sensors Be sure the connectors and wiring are routed away from high heat areas The oxygen sensors should be mounted with the sensor tip pointing between horizontal and fully downward do not mount with the tip oriented upward Weld in the mounting bosses supplied 7 8 hole if using headers Exhaust Manifolds It is recommended that you use the provided ex haust manifolds or similar LS Engine style Exhaust Manifolds Positive Crankcase Ventilation System PCV How to set up your PCV system
6. publication is presented without any warranty All the risk for its use is entirely assumed by the user Specific component design mechanical procedures and the qualifications of individual readers are beyond the control of the publisher and therefore the publisher disclaims all liability incurred in connection with the use of the information provided in this publication Chevrolet Chevy the Chevrolet Bow Tie Emblem General Motors and GM are all registered trademarks of the General Motors Corporation tLe LS Series Crate Engine Control System REV 28JN12 Parro 19171935 ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 DATE REVISION AUTH WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES
7. used as the low reference ground for completion of the MAP TPS and oil pressure output circuits It can also be used for modules connected to either of the fused 12V outputs This is a power output supply and Terminals for the included mating connector can be acquired at a GM dealership in the Delphi Terminal Service kit J38 125 in tray 8 position 9 At most dealerships this can be found at the Service Desk NOTE If you are using CP Supermatic Transmission Controller Kit 19212657 the Tachometer Signal WHITE and Throttle Position PURPLE are required to be connected If you are using CP Supermatic Connectand Cruise Kit 19257634 or 19257661 the Bulk Head Connector must be plugged into the CP Supermatic Connect and Cruise harness For the Connect and Cruise the tachometer signal and the throttle position signal are received through the bulk head connector Start up and Break in Procedures Safety first If the vehicle is on the ground be sure the emergency brake is set the wheels are chocked and the car cannot fall into gear Verify everything is installed properly and nothing was missed 1 Oil amp Fluid Fill This engine assembly may need to be filled with oil or have oil added After installing the engine ensure the crankcase has been filled with the appropriate motor oil to the recommended oil fill level on the dipstick All LS Chevy Performance Crate Engines require a special oil meeting GM Standard GM4718M this wi
8. 566 0103 Connector E tate Brown White Cam Sensor Signal Pos C 33467 0003 Terminal 22 GA m 30 a eee rs Sensor Signal os 33467 0005 Terminal 18 GA 7158 3113 40 Seal 1 each Tan MAF Pos E 472 62 22 7116 4152 02 Term 1 each 1869 ere Blue White Crank Sensor Power Pos A 34586 0001 Plug 40 each Groen Pe poo PONSEN 34565 0003 Dress Cover OSOS Purple ETC Throttle Pos Sensor Wire 2 Pos F Circuit aut Color Yellow MAF Pos A 2121 Purple Odd Coil Pin G 3113 P a Gray White Odd Fr 02 Heater pos E 1664 Tan Odd Fr O2 Sensor Pos A 22 Lt Blue Black Injector 4 Pin B 1665 Purple white Odd Fr O2 Sensor Pos B 877 _ Injector 7 Pin B E 22 Tan Even Knock Pos B 750 E 3 14 oo Ground ae E Odd Knock Pos A All Other Positions to have Cavity Plugs 531 11 22 Yellow ETC Pos B ECM 582 12 Brown ETC Pos A a Item C3 5290 Pink Black Pos 1B Bulk Head en e a lt lt 5284 14 22 Purple Cam Phaser Control Pos D 33467 0003 Terminal 22 GA 7158 3113 40 Seal 1 each 2128 17 22 Purple white Even Coils Pos G 7116 4152 02 Term 1 each 1746 16 22 Lt Blue Black Injector 3 Pos B 2124 18 22 Green White Even Coils Pos C 34586 0001 Plug 2130 19 22 Brown White Even Coils Pos E 34565 0003 Dress Cover 23 Pink Black Cam Sensor Ground Pos B as a a ae ler ee a Pos A 1667 3 Tan Even Fr O2 Pos
9. 68 LS2 Controller Kit 19258267 LS376 480 Controller Kit Supersedes 19201327 19259261 LS376 525 Controller Kit 19258270 LS3 Controller Kit Supersedes 19201861 19244481 LSX454 Controller Kit Each Package includes an Engine Control Kit Each Kit will contain an Engine Control Unit pre programmed for the specific engine kit All Engine Control Kits have the following parts 19171935 l Sheet Instruction Sheet 19166573 Engine Harness 19202597 MAP Sensor Jumper LS3 LS376 or 19202598 LS2 LS7 LSX454 15865791 Mass Airflow Sensor 19166574 Mass Airflow Sensor Bracket 10379038 Accelerator Pedal 12581966 Oxygen Sensor Quantity 2 15156588 Oxygen Sensor mounting boss Quantity 2 tLe LS Series Crate Engine Control System REV 28JN12 Parro 19171935 09NO10 Initial Release William Duncan aS 28JN12 Revision William Duncan et ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES TO BE UNITIZED INACCORDANCE WITH GM SPECIFICATIONS PERFORMANGE VEHICLES PARTS RACING O Installation Instructions ECM The Engine Control Module ECM is environmentally sealed and can be mounted underhood however avoid extremely hot locations exhaust etc or high splash areas It is not recommended that the EMC be mounted directly to the engine Accelerator Pedal Mount the accelerator pedal per the following dimensional guide
10. ARTS RACING O Bulkhead Connector Outputs Bulk Head Connector Pin L Mating Connector 15326849 Connector 15326854 Connector 15304701 Male Connector 15366021 Seal 15366021 Seal 12191818 Female Terminal 15305171 Plug 15305171 Plug 15430903 TPA 15430903 TPA 15317832 CPA Load View or Rear View Wire Circuit Saar Color o 2501A GMLAN High Speed 419A B 22 Brown White MIL m E a White alle Speed 432B Lt Green MAP Signal Plug Empty 2500A 22 Tan Black GMLAN Low Speed 331B 2 2 Tan White Oil Pressure Signal m o a Pare tet Fa pa ao cj IIOIn m K 18 Orange Battery Power Fuse E 5292 T L 18 Pink Ignition OnPower 50B M 18 Black Ground Bulkhead connector outputs Terminals for the included mating connector can be acquired at a GM dealership in the Delphi Terminal Service kit Terminals are Delphi part number 15326269 GM part number 19167018 and wire seals are Delphi part number 15366021 white seal At many dealerships these can be found at the Service Desk e GMLAN Communication Link TAN BLACK STRIPE TAN This provides the GMLAN communication messages containing engine operating parameters for potential use in future add on modules any current integration of this is left to the user Can be used with a LAN dash or an electronic dash readout display e Tachometer Signal WHITE features above e Vehicle
11. PERFORMANGE VEHICLES PARTS RACING O LS Series Crate Engine Control System Thank you for choosing Chevrolet Performance as your high performance source Chevrolet Performance is committed to providing proven innovative performance technology that is truly more than just power Chevrolet Performance parts are engineered developed and tested to exceed your expectations for fit and function Please refer to our catalog for the Chevrolet Performance Authorized Center nearest you or visit our website at _www chevyperformance com This control system is a stand alone fully integrated kit designed to run Chevrolet Performance Parts LS Series crate engines with 58x crankshaft reluctor wheels 4x camshaft indexing and electronic throttle control ETC typically 2006 and newer Included in the kit are the engine control module flashed with the appropriate calibration engine harness accelerator pedal mass air flow MAF sensor MAF sensor mounting boss oxygen sensors 2 and oxygen sensor mounting bosses 2 This control system requires a fuel system which maintains 400 kPa 60 psi constant pressure and can deliver 40 gph for the LS2 LS3 LS376s or 50 gph for LSX454 amp LS7s Vehicle performance driveability and engine durability may be affected if the correct pressure or flow are not maintained IMPORTANT Read the System DOs and DON Ts section below before attempting to install the engine and then review again
12. Speed BROWN This is a non scaled output for use with auto scaling speedometers and will not function unless a vehicle speed sensor VSS is connected to the ECM through the VSS wire in the harness MAP LT GREEN This is an output for use in gauges or for load indication in transmission controllers any connection must be to high impedance device The output is a 0 5 Volt signal ranging from 10 105 KPa 1 5 15 2 psia Use the ground wire in the bulkhead connector as the low reference ground This is a 2 pulse rev output see Oil Pressure Sensor TAN AWHITE STRIPE This is a zero to five volt output from the oil pressure sensor which can be used for monitoring oil pressure Pressure psig 32 Sensor Voltage 16 See Chart Below Use the ground wire in the bulkhead connector as the low reference ground PSI 32 voltage 16 Volts PSI 0 5 0 0 1 0 16 0 2 0 48 0 3 0 80 0 4 0 112 0 5 0 144 0 Throttle Position PURPLE This is an output for use in gauges or for load indication in transmission controllers any connection must be to a high impedance device The output is a 0 5 4 5 volt signal ranging from 0 100 Use the ground wire in the bulkhead connector as the low reference ground 10A Fused 12V Power ORANGE is always enabled e 15A Fused 12V Ignition Power PINK This is a power output supply and is enabled only when the ignition is on e Ground BLACK This is
13. The Fuse Relay center includes a malfunction indicator light MIL which will illuminate in the event of an engine fault code See your Chevrolet Performance Parts dealer to have this code retrieved at the diagnostic link connector in the fuse relay center using a Tech2 with Chevrolet Performance Parts Diagnostics selection or 2009 CTS LSA Manual Trans Configuration Codes can also be retrieved using an aftermarket diagnostic scan tool capable of reading this configuration NOTE The MIL will illuminate when the vehicle is keyed up this is normal and it will go out once the engine is started if there are no current fault codes A redundant MIL wire is included in the wiring harness to allow a light to mounted inside the passenger compartment The wire is located in the wire bundle near the pedal connector and the ignition voltage Acooling fan is controlled by the ECM Control is set to turn on a 12 V fan at 97 Deg C 207 Deg F coolant temperature The fan control wire is fused relayed and must be connected directly to your fan e The fuel pump is controlled by the ECM The control wire supplies 12 V and is fused relayed and should connect to the 12 V side of the fuel pump e Atachometer signal is included in the bulkhead connector see below This is a 2 pulse rev output which may correspond to a 4 cylinder setup in some tachometers or transmission controllers Note the signal is a low voltage square wave some tachometers or transmiss
14. cations which can potentially damage the wiring e g sharp edges pinch points rotating components exhaust components etc Make sure any unused connectors or wiring are properly secured and protected sealed or taped as required to avoid short circuiting Ensure all engine and wiring harness grounds are clean and secure Minimum inch braided strap from the engine to the vehicle chassis is recommended e Ensure the MAF sensor is oriented correctly in the induction it will only read correctly in the proper direction An arrow is located on the sensor indicating correct flow direction Verify this before welding the mounting boss as the sensor will mount only one way in the boss e Ensure the MAF Sensor is mounted in the middle of a minimum 6 inch length of 4 inch diameter tube and is a minimum of 10 inches from the throttle body e Ensure the fuel pressure is a constant 400 kPa 60 psi with the engine running This is what the control system has been developed to run Ensure the fuel pump has the following flow capability Minimum 40 gph 400 kPa for LS2 LS3 LS376s and Minimum 50 gph 400 kPa for the LSX454 amp LS7s e Ensure battery voltage is connected using a minimum 8 gauge wire to one of the studs on the fuse block e Ensure that the accelerator pedal clearances meet the guidelines below Don t e Change or alter any wiring in the accelerator pedal or electronic throttle systems e Vacuum reference the
15. cle side connections Optional circuits are described in the System Features section below NOTE A Malfunction Indicator Lamp MIL sometimes called a service engine soon light is mounted inside the fuse relay center A redundant MIL output is also available in the harness near the pedal module connector It is recommended that a MIL also be installed in a visible location in the passenger compartment This circuit requires any 12v low current light and an ignition 12v power source The ECM MIL output supplies the ground for the circuit REV 28JN12 Partno 19171935 tLe LS Series Crate Engine Control System ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES DATE O Po RSN S AUTH TO BE UNITIZED INACCORDANCE WITH GM SPECIFICATIONS PERFORMANGE VEHICLES PARTS RACING O Connections Required for Correct Operation e Coolant Sensor 2 pin Connector e Mass Air Flow MAF Sensor 5 pin Connector e Camshaft Position Sensor 3 pin Connector Electronic Throttle Control 6 pin Connector e Manifold Absolute Pressure MAP Sensor 3 pin Connector e Oxygen Sensors 2 total 5 pin Connectors e Knock Sensors 2 total 2 pin Connectors Ignition Coil Blocks 2 total 8 pin Connectors Fuel Injectors 8 total 2 pin Connectors e Crankshaft Position Sensor 3 pin Connecto
16. fuel system it must run constant 400 kPa 60 psi Solder or alter any Oxygen Sensor wiring Vehicle Requirements Vehicle Speed Input optional The ECM is programmed and looking for 40 pulses per revolution typical for automatic transmissions The LS Control System harness is designed to plug into the output speed sensor of 4L60 amp 4L80 Transmissions which have a 40 pulse output NOTE If you are using the CP Supermatic Connect and Cruise Transmission Control System the vehicle speed input must be plugged in Axle Ratlo and Tire Size Requirements The axle drive ratio in the calibration is set to 3 42 1 and is okay for ratio from 3 08 to 4 11 Tire diameter needs to be between 26 and 30 NOTE For optimal performance choose an axle ratio and a tire size within the recommended range NOTE All Engines are shipped with an automatic transmission flex plate For manual applications the clutch and flywheel used must be purchased separately and is up to the end user See www chevyperformance com for recommended CP clutches and flywheels Also see the CP Catalog or www chevyperformance com for recommended starter flywheel and clutch components NOTE The parts listed here may have been updated or superseded go to www chevyperformance com for the latest part number list Parts List These instructions cover the following packages 19258553 LS7 Controller Kit for all years Supercedes 19166567 amp 19243066 191665
17. high load Change the Oil and Filter after 500 Mile Break In Again inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly 10 Service information Contact your Chevrolet Performance Parts Dealer for Service or for instructions on how to obtain Service Manuals and Service Information Use information from Chevrolet Performance Parts Diagnostics which can be selected from the first menu on the Tech2 for engine and harness diagnosis use this information for all LS Crate Engine Systems z Tech 2 Navigation Simulator Diagnostics Service Programming Engineering Tools View Captured Data System GM Performance Parts Diagnostics Tool Options Getting Started m History Application Appendix See www chevyperformance com for recommended starters clutch and flywheels for the manual applications and accessory drive parts How the PCV System Works A closed crankcase ventilation system must be used in order to provide a more complete scavenging of crankcase vapors Filtered air from the air induction system air cleaner duct is supplied to the crankcase mixed with blow by vapors and passes through a crankcase ventilation metering device before entering the intake manifold The primary component in the positive crankcase ventilation PCV system is the PCV flow metering orifice Vacuum changes within the intake manifold result in flow variations of the bl
18. ion controllers may need a pull up resistor in order to read the signal similar to a 5000 ohm 1 4 watt resistor this detail is left to the user The following circuit has worked for numerous devices the resister value may need to be changed if your device does not read this output properly Bulkhead Connector Pin C Engine Speed Tach Out Pull High Tach Out Bulkhead Connector Pin L Ignition Voltage NOTE When connected to the CP Supermatic Connect and Cruise Harness the pull up resister is not required for the Transmission Controller An oil pressure output is included in the bulkhead connector and can be used for a pressure gauge if desired see below for scaling If you are using the optional oil pressure signal in the bulk head connector ensure the harness is plugged into oil pressure sensor A vehicle speed output is included in the bulkhead connector for use with auto scaling soeedometers The vehicle speed sensor connector in the harness must be attached to a variable reluctance type speed sensor typical of most late model GM automatic transmissions for this to function tLe LS Series Crate Engine Control System REV 28JN12 Parro 19171935 ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES DATE O I O eVISION AUTH TO BE UNITIZED INACCORDANCE WITH GM SPECIFICATIONS PERFORMANGE VEHICLES P
19. lines mounting details are application specific and are left to the user Ensure that the pedal is securely mounted to the vehicle A grommet is required in any sheet metal hole that the harness routes through to avoid wire damage ACCELERATOR PEDAL ASSEMBLY MINIMUM SPACING GUIDELINES ey v S Brake Pedal Brake Pedal Accelerator Accelerator Tunnel Pedal Console Side View Front View Mass Air Flow MAF Sensor NOTE It is critical that the MAF sensor is mounted per the instructions below Vehicle performance and or driveability may be affected if it is not mounted as recommended The mass air flow sensor must be installed in the induction system using the supplied MAF sensor mounting boss The induction system should be 4 inches in diameter and have a minimum straight section 6 inches in length Mount the MAF sensor in the middle of the straight induction section ensuring that the middle of the mounting boss is at least 10 inches from the throttle body The MAF sensor must be oriented correctly in the induction system note the arrow on the sensor indicating flow direction Be sure to weld the mounting boss correctly the sensor will only mount one way in the boss see diagram Weld the boss in place before installing the sensor When installed in the vehicle the MAF sensor should be mounted with the connector end pointing between horizontal and fully upright do not mount with the connector oriented
20. ll be specified on the oil label Mobil 1 is one such recommended oil Other oils meeting this standard may be identified as synthetic However not all synthetic oils will meet this GM standard Look for and use only oil that meets GM Standard GM4718M Also check and fill as required any other necessary fluids such as coolant power steering fluid etc 2 Oil System Prime a The engine should be primed with oil before starting Install an oil pressure gauge the existing oil pressure sensor location at the upper rear of the engine may be used and disconnect the engine control system removing power from the engine control module is generally recommended NOTE Disconnecting only ignition or fuel injector connectors is me LS Series Crate Engine Control System REV 28JN12 Party 19171935 DATE O i O eVISION AUTH ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES TO BE UNITIZED INACCORDANCE WITH GM SPECIFICATIONS PERFORMANGE VEHICLES PARTS RACING O not recommended make sure the control system will not provide ignition or fuel to the engine b Once the engine control system has been disconnected crank the engine using the starter for 10 seconds and check for oil pressure If no pressure is indicated wait 30 seconds and crank again for 10 seconds Repeat this process until oil pressure is indicated on the ga
21. ow by vapors If abnormal operating conditions occur the design of the PCV system permits excessive amounts of blow by vapors to back flow through the crankcase vent tube and into the engine induction system air cleaner to be consumed during normal combustion This engine ventilation system design minimizes oil consumption and significantly reduces the potential for oil ingestion during vehicle limit handling maneuvers ECM Connectors Pinouts ECM Blue Item C1 34576 0703 Connector 33467 0003 Term 22 GA 33467 0005 Term 18 GA 34586 0001 Plug 34575 003 Dress Cover Circuit Wire Gage Color 239M 22 Pink Power Tae oe e Jern 465 13 22 Green White Fuse Bus Pos 7A 239 18 Pink Power es e 121 25 99 White Shh Speed Bulk Head 1164 33 22 White Black Pedal Module Pos F 1271 36 Brown Pedal Module Pos D 1272 E a 22 Purple Pedal Module Pos A PDL 1 E 3 22 Blue Pedal Module Pos E PDL 2 49 22 Lt Blue Pedal Module Pos B All Other Positions to have Cavity Plugs tLe LS Series Crate Engine Control System REV 28JN12 Parrno 19171935 ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1 2 x 11 WHITE 16 POUND BOND PAPER PRINT ON BOTH SIDES EXCLUDING TEMPLATES DATE O o RSN S AUTH TO BE UNITIZED INACCORDANCE WITH GM SPECIFICATIONS PERFORMANCE VEHICLES PARTS RACING ECM Wire ee Se Color Item C2 2123 22 Lt Blue Odd Coils Pin F 34
22. r e Accelerator Pedal Sensor 6 pin Connector Ignition Switch Input Wire Wire e Fuel Pump Control Wire Wire e Engine Grounds 3 total Eyelets e Battery Power Stud at Fuse Relay Center Cooling Fan Control Wire Optional Connections Not required for operation e Alternator Control Connector e Engine Oil Pressure Sensor 3 pin Connector e Vehicle Speed Sensor 2 pin Connector Only required for CPP Connect amp Cruise Transmission Controls e Optional User Outputs Bulkhead 12 pin Connector 12 way Connections Connect all engine vehicle side connectors before connecting the harness to the ECM All engine vehicle side connectors are functionally labeled consult a service manual if necessary to determine connection locations see following service manual information NOTE It may be easier to install the harness on the engine before installing the engine into the vehicle The harness includes a fuse relay center containing all required fuses and relays and also a 12 way bulkhead connector with sealed mating connector which contains outputs that may be useful to the user see Bulkhead Connector Outputs section below The fuse relay center should be mounted as high in the engine compartment as possible to avoid unnecessary splash and road debris Likewise keep the 12 way bulkhead connector and diagnostic link connector both connect from the fuse relay center as high and protected as possible
23. uge 3 Initial Engine Start Reconnect the engine control system Start the engine and listen for any unusual noises If no unusual noises are noted run the engine at approximately 1000 RPM until normal operating temperature is reached 4 Engine Warm Up Recommendation When possible you should always allow the engine to warm up prior to driving It is a good practice to allow the oil sump and water temperature to reach 180 F before towing heavy loads or performing hard acceleration runs 5 First 30 Mile Break In Period The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle WOT or sustained high RPM accelerations 6 Medium Accelerations for Break In Run five or six medium throttle 50 accelerations to about 4000 RPM and back to idle 0 throttle in gear 7 Hard Accelerations for Break In Run two or three hard throttle WOT 100 accelerations to about 4000 RPM and back to idle 0 throttle in gear 8 Change the Oil and Filter Replace the oil per the specification in step 1 and replace the filter with a new PF48 AC Delco oil filter Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly 9 500 Mile Break In Period Drive the next 500 miles 12 to 15 engine hours under normal conditions Do not run the engine at its maximum rated engine speed Also do not expose the engine to extended periods of
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