ENGINE PERFORMANCE – Chevrolet Uplander 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.9L VIN 1

3.9L VIN 1, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN 1, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Uplander 2008:

• (at engine to transmission stud above g115)
• (front of engine)
• (in air cleaner assembly)
• (in fuel injector harness, 5 cm from breakout to fuel injectors 5 & 6) j142
• 5 volt ref 1
• 5 volt ref 2
• Bare
• Camshaft position (cmp) actuator solenoid
• Ckp sensor sig
• Cmp sensor sig
• Engine control module (ecm)
• Engine oil pressure (eop) sensor (lower left side of engine block)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel injectors (on top of engine)
• G113
• G113 (at engine to transmission stud above g115)
• Gnd
• Ground
• Heated oxygen sensor (ho2s) 1 (in right bank exhaust manifold, before catalytic converter)
• Heated oxygen sensor (ho2s) 2 (in exhaust, after catalytic converter)
• Ho2s heater 1
• Ho2s heater 2
• Ho2s sig high 1
• Ho2s sig high 2
• Ho2s sig low 1
• Ho2s sig low 2
• Iat
• Iat sens sig
• Ic 1 ctrl
• Ic 2 control
• Ic 2 ctrl
• Ic 3 control
• Ic 3 ctrl
• Ic1 control
• Ign volt
• Ignition control module (icm) (top of valve cover)
• Ignition voltage
• J151 (in engine harness, 15 cm from ecm x2)
• J153 (in engine harness, 10 cm from ecm x2)
• J155
• Knock sensor (ks) 1 (right side of engine block)
• Knock sensor (ks) 2 (left side of engine block)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sens sig
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air intake)
• Nca
• Oil sens sig
• Pnk
• Sol high ctrl
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan c
• Throttle actuator control (tac) module (rear of engine, on throttle body assembly)
• Tp sensor 1 sig
• Tp sensor 2 sig

3.9L VIN 1, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN 1, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Uplander 2008:

• (front of intake manifold) intake manifold tuning (imt) solenoid valve
• (on high pressure hose, near high pressure hose connection to a/c compressor) a/c refrigerant pressure sensor
• (pins: 67 to 73 not used)
• (top front of engine) camshaft position (cmp) sensor
• (top front of engine) crankshaft position (ckp) sensor
• (top of intake manifold) manifold absolute pressure sensor
• (top rear of engine) engine coolant temperature (ect) sensor
• (top rear of intake manifold) evaporative emission (evap) canister purge solenoid valve
• 5 volt ref 1
• A/c sens sig
• Air conditioning system
• Anti-lock
• Brakes anti-lock
• Computer data lines system
• Deli torque sig
• Ect sens sig
• Engine control module (ecm) (in air cleaner assembly)
• G113 (at engine to transmission stud above g115)
• Gen cycle sig
• Gen turn sig
• Imt valve sig
• Imt vlv ctrl
• Lines system computer data
• Lo speed fan
• Low ref
• Map sensor sig
• Out put sig
• Park/neut sig
• Pnk
• Red
• Req torque sig
• Serial data
• Solenoid ctrl
• System
• System brakes
• System starting/charging
• Tan

3.9L VIN 1, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN 1, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Uplander 2008:

• Accelerator pedal position (app) sensor (on accelerator bracket)
• Acces volt
• Automatic transmission
• Elec ign fuse 15a
• Eng snsr/ evap fuse 15a
• Etc fuse 18 15a
• Fuel inj fuse 15a
• Fuel pump fuse 2 15a
• Fuel pump relay
• G113 (at engine to transmission stud above g115)
• Hot at all times
• Ign main relay
• J155
• J159
• J175
• Nca
• Pcm etc fuse 9 15a
• Pcm ign fuse 14 10a
• Pnk
• Pwr/ trn relay
• Sig
• System transmissions
• Tan
• Transmission control module (behind coolant reservoir)
• Underhood fuse block (in underhood compt, above right front wheelwell)

3.9L VIN 1, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN 1, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Uplander 2008:

• (on lower left "b" pillar) g301
• 12v ref
• 5 volt ref 1
• 5 volt ref 2
• A/c clutch relay
• Acc
• Accessory volt
• Air conditioning system
• App sensor 1 sig
• App sensor 2 sig
• Batt pos volt
• Body control module (bcm) (below left side of dash, left of steering column)
• Class 2 serial data
• Cnstr/ vent fuse 19 10a
• Computer data lines system
• Crank volt
• Cruise control system
• Cruise ctrl sig
• Engine control module (ecm) (in air cleaner assembly)
• Evap vent sol
• Evaporative emission (evap) canister vent solenoid valve (long wheelbase: under vehicle, on top right side of fuel tank) (short wheelbase: under vehicle, above fuel tank)
• Frt wsw fuse 24 15a
• Fuel level sig
• Fuel pump
• Fuel pump & sender assembly (in top of fuel tank)
• Fuel pump relay
• Fuel tank pressure (ftp) sensor (top of fuel tank)
• Fuel tank sens
• Hi speed fan rly
• Hot at all times
• I/p fuse block (right side of dash, behind access panel)
• Ign volt
• Ignition switch
• Ignition voltage
• Instrument panel cluster (ipc)
• J139
• J273
• J279
• J306 (w/ handicapped) (in body harness, 8 cm from x200)
• J371 (in fuel tank harness, 30 cm from x305)
• Lock
• Logic
• Low ref
• Malfunction indicator lamp (mil)
• Mil control
• Mil ctrl
• Pnk
• Rly ctrl
• Run
• Serial data
• Sply volt
• Start
• Starter rly ctrl
• Starting/charging system
• Stop lamp volt
• Tan
• Underhood fuse block (in underhood compt, above right front wheelwell)
• Vehicle speed sig

3.9L VIN W

3.9L VIN W, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN W, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Uplander 2008:

• (at engine to transmission stud above g115)
• (front of engine)
• (in air cleaner assembly)
• (in fuel injector harness, 5 cm from breakout to fuel injectors 5 & 6) j142
• 5 volt ref 1
• 5 volt ref 2
• Bare
• Camshaft position (cmp) actuator solenoid
• Ckp sensor sig
• Cmp sensor sig
• Engine control module (ecm)
• Engine oil pressure (eop) sensor (lower left side of engine block)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel injectors (on top of engine)
• G113
• G113 (at engine to transmission stud above g115)
• Gnd
• Ground
• Heated oxygen sensor (ho2s) 1 (in right bank exhaust manifold, before catalytic converter)
• Heated oxygen sensor (ho2s) 2 (in exhaust, after catalytic converter)
• Ho2s heater 1
• Ho2s heater 2
• Ho2s sig high 1
• Ho2s sig high 2
• Ho2s sig low 1
• Ho2s sig low 2
• Iat
• Iat sens sig
• Ic 1 ctrl
• Ic 2 control
• Ic 2 ctrl
• Ic 3 control
• Ic 3 ctrl
• Ic1 control
• Ign volt
• Ignition control module (icm) (top of valve cover)
• Ignition voltage
• J151 (in engine harness, 15 cm from ecm x2)
• J153 (in engine harness, 10 cm from ecm x2)
• J155
• Knock sensor (ks) 1 (right side of engine block)
• Knock sensor (ks) 2 (left side of engine block)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sens sig
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air intake)
• Nca
• Oil sens sig
• Pnk
• Sol high ctrl
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan c
• Throttle actuator control (tac) module (rear of engine, on throttle body assembly)
• Tp sensor 1 sig
• Tp sensor 2 sig

3.9L VIN W, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN W, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Uplander 2008:

• (front of intake manifold) intake manifold tuning (imt) solenoid valve
• (on high pressure hose, near high pressure hose connection to a/c compressor) a/c refrigerant pressure sensor
• (pins: 67 to 73 not used)
• (top front of engine) camshaft position (cmp) sensor
• (top front of engine) crankshaft position (ckp) sensor
• (top of intake manifold) manifold absolute pressure sensor
• (top rear of engine) engine coolant temperature (ect) sensor
• (top rear of intake manifold) evaporative emission (evap) canister purge solenoid valve
• 5 volt ref 1
• A/c sens sig
• Air conditioning system
• Anti-lock
• Brakes anti-lock
• Computer data lines system
• Deli torque sig
• Ect sens sig
• Engine control module (ecm) (in air cleaner assembly)
• G113 (at engine to transmission stud above g115)
• Gen cycle sig
• Gen turn sig
• Imt valve sig
• Imt vlv ctrl
• Lines system computer data
• Lo speed fan
• Low ref
• Map sensor sig
• Out put sig
• Park/neut sig
• Pnk
• Red
• Req torque sig
• Serial data
• Solenoid ctrl
• System
• System brakes
• System starting/charging
• Tan

3.9L VIN W, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN W, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Uplander 2008:

• Accelerator pedal position (app) sensor (on accelerator bracket)
• Acces volt
• Automatic transmission
• Elec ign fuse 15a
• Eng snsr/ evap fuse 15a
• Etc fuse 18 15a
• Fuel inj fuse 15a
• Fuel pump fuse 2 15a
• Fuel pump relay
• G113 (at engine to transmission stud above g115)
• Hot at all times
• Ign main relay
• J155
• J159
• J175
• Nca
• Pcm etc fuse 9 15a
• Pcm ign fuse 14 10a
• Pnk
• Pwr/ trn relay
• Sig
• System transmissions
• Tan
• Transmission control module (behind coolant reservoir)
• Underhood fuse block (in underhood compt, above right front wheelwell)

3.9L VIN W, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Uplander 2008

List of elements for 3.9L VIN W, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Uplander 2008:

• (on lower left "b" pillar) g301
• 12v ref
• 5 volt ref 1
• 5 volt ref 2
• A/c clutch relay
• Acc
• Accessory volt
• Air conditioning system
• App sensor 1 sig
• App sensor 2 sig
• Batt pos volt
• Body control module (bcm) (below left side of dash, left of steering column)
• Class 2 serial data
• Cnstr/ vent fuse 19 10a
• Computer data lines system
• Crank volt
• Cruise control system
• Cruise ctrl sig
• Engine control module (ecm) (in air cleaner assembly)
• Evap vent sol
• Evaporative emission (evap) canister vent solenoid valve (long wheelbase: under vehicle, on top right side of fuel tank) (short wheelbase: under vehicle, above fuel tank)
• Frt wsw fuse 24 15a
• Fuel level sig
• Fuel pump
• Fuel pump & sender assembly (in top of fuel tank)
• Fuel pump relay
• Fuel tank pressure (ftp) sensor (top of fuel tank)
• Fuel tank sens
• Hi speed fan rly
• Hot at all times
• I/p fuse block (right side of dash, behind access panel)
• Ign volt
• Ignition switch
• Ignition voltage
• Instrument panel cluster (ipc)
• J139
• J273
• J279
• J306 (w/ handicapped) (in body harness, 8 cm from x200)
• J371 (in fuel tank harness, 30 cm from x305)
• Lock
• Logic
• Low ref
• Malfunction indicator lamp (mil)
• Mil control
• Mil ctrl
• Pnk
• Rly ctrl
• Run
• Serial data
• Sply volt
• Start
• Starter rly ctrl
• Starting/charging system
• Stop lamp volt
• Tan
• Underhood fuse block (in underhood compt, above right front wheelwell)
• Vehicle speed sig