ENGINE PERFORMANCE – Pontiac G8 GXP 2009 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.6L VIN 7

3.6L VIN 7, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009:

• (in engine harness) j123
• 5v ref
• Cam phaser exhaust 1 sig
• Cam phaser exhaust 2 sig
• Cam phaser intake 1 sig
• Cam phaser intake 2 sig
• Camshaft position (cmp) exhaust sensor 1 (front of right cylinder bank)
• Camshaft position (cmp) exhaust sensor 2 (front of left cylinder bank)
• Camshaft position (cmp) intake sensor 1 (front of right cylinder bank)
• Camshaft position (cmp) intake sensor 2 (front of left cylinder bank)
• Ckp sens 1 sig
• Crankshaft position (ckp) sensor (lower right rear of engine)
• Engine control module (ecm) (right side of engine compt)
• Engine coolant temperature (ect) sensor (left side of engine)
• Engine oil level/ temperature sensor (left front of oil pan)
• Engine oil pressure (eop) sensor (top left front of engine)
• Evap cnstr purge sol ctrl
• Exhaust 1 cam pos sens sig
• Exhaust 2 cam pos sens sig
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Generator field duty cycle sig
• Generator turn on sig
• Ic 1 ctrl
• Ic 3 ctrl
• Ic 5 ctrl
• Imt sol vlv
• Intake 1 cam pos sens sig
• Intake 2 cam pos sens sig
• J116 (in engine harness)
• J117 (in engine harness)
• Knock sens 1 sig
• Knock sensor (ks) 1 (right side of engine block)
• Knock sensor (ks) 2 (top left rear of engine)
• Low ref
• Oil lvl sw sig
• Pnk
• Sens sig
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009:

• (in engine harness) j115
• (in engine harness) j121
• Camshaft position (cmp) exhaust solenoid 1 (front of right cylinder bank)
• Camshaft position (cmp) exhaust solenoid 2 (front of left cylinder bank)
• Camshaft position (cmp) intake solenoid 1 (front of right cylinder bank)
• Camshaft position (cmp) intake solenoid 2 (front of left cylinder bank)
• Computer data lines system
• Driver information center (dic)
• Evaporative emission (evap) canister purge solenoid valve (top left rear of engine)
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (on right bank exhaust manifold)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (on left bank exhaust manifold)
• Ign
• Instrument panel cluster (ipc)
• Intake manifold tuning (imt) solenoid valve
• Lo spd gmlan serial data
• Logic
• Low oil pressure ind
• Malfunction ind
• Pnk

3.6L VIN 7, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009:

• (behind left kick panel) instrument panel fuse block
• Above respective cylinders) fuel injectors
• Ecm batt fuse 10 15a
• Ect sens sig
• Engine control module(ecm) (right side of engine compt)
• Fuel pump fuse 12 20a
• Fuel pump relay
• G202 (behind left kick panel)
• Ho2s high sig
• Ho2s htr lo ctrl
• Ho2s low sig
• Hot at all times
• Ic 2 ctrl
• Ic 4 ctrl
• Ic 6 ctrl
• Inst/disp/ rfa/dlc fuse 5 10a
• Knock sens 2 sig
• Low ref
• Oil press sens sig
• Oil temp sens sig
• Pnk
• Rear fuse block (left side of rear compt)
• Tan
• Throttle body (center front of engine)
• Tp sens 1 sig
• Tp sens 2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009:

• (in fuel injector harness) j135
• (in right headlamp harness) j137
• Canister vent fuse 22 10a
• Ecm 1 fuse 15a
• Emission 1 fuse 15a
• Emission 2 fuse 32 15a
• Eng ign fuse 10a
• Evn coils fuse 20a
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• G108 (right rear of engine block)
• G109 (left middle of engine block)
• Hot at all times
• Hot w/ ign relay 14 energized
• Ignition coil 1 (top of right cylinder bank)
• Ignition coil 2 (top of left cylinder bank)
• Ignition coil 3 (top of right cylinder bank)
• Ignition coil 4 (top of left cylinder bank)
• Ignition coil 5 (top of right cylinder bank)
• Ignition coil 6 (top of left cylinder bank)
• J105
• J106
• J114 (in engine harness) pnk
• J118 (in engine harness)
• J120
• J139 (in front object alarm harness)
• J146
• Nca
• Odd coils fuse 20a
• Plug spark
• Pnk
• Pnk b
• Pnk d
• Pwr trn relay 13
• Spark plug
• Underhood fuse block (mounted to right front strut tower)

3.6L VIN 7, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009:

• (downstream of right catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• (in exhaust system, rear of left catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• 5v ref
• A/c refrig press sens
• Acc wakeup serial data
• Accelerator pedal position (app) sensor (under left side of dash)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Batt positive volt
• Computer data lines system
• Cooling fans system
• Engine control module (ecm) (right side of engine compt)
• Evaporative emission (evap) canister vent solenoid valve
• Exterior lights system
• Fuel level sensor
• Fuel level sensor (secondary) (in fuel tank)
• Fuel lvl sens sig 1
• Fuel lvl sens sig 2
• Fuel press sig
• Fuel pump
• Fuel pump &
• Fuel pump rly ctrl
• Fuel sys cnstr vent
• Fuel tank
• G106 (right front of engine block)
• G304 (behind right kick panel)
• Gmlan serial data bus+
• Gmlan serial data bus-
• Gnd
• Hi spd cooling fan rly
• Ho2s high sig
• Ho2s htr lo ctrl
• Ho2s low sig
• Iat sens sig
• Ign 1 volt
• J122
• J124 (in engine harness)
• J330 (in fuel tank harness)
• Lo spd cooling fan rly
• Low ref
• Maf sens sig
• Main rly ctrl
• Mass air flow (maf)/intake air temperature (iat) sensor (front of engine, in air cleaner duct)
• Mil ctrl
• Park/neutral sig
• Pnk
• Pressure (ftp) sensor
• Sender assembly (in fuel tank)
• Sens sig
• Starter rly coil ctrl
• Starting/charging system
• Stop lamp sw sig

6.0L VIN Y

6.0L VIN Y, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009

List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009:

• (right front of engine block) g106
• 5v ref
• 5v rtn brk booster vacuum
• A/c refrig press sens sig
• Acc wakeup serial data
• Accelerator pedal position (app) sensor (under left side of dash)
• Air conditioning system
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Backup lamp switch (m/t)
• Backup sw sig
• Batt positive volt
• Brk booster vacuum sens
• Clutch pedal position (cpp) sensor (m/t) (under left side of dash)
• Computer data lines system
• Cooling fans system
• Cpp sens sig
• Ecm batt fuse 10 15a
• Engine control module (ecm) (right side of engine compt)
• Exterior lights system
• Fuel lvl sens sig
• Fuel pump fuse 12 20a
• Fuel pump relay
• Fuel pump rly ctrl
• Fuel tank pressure (ftp) sensor
• Fuel tank vapour press
• G202 (behind left kick panel)
• Gmlan serial data bus+
• Gmlan serial data bus-
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of right catalytic converter)
• Hi spd cooling fan rly ctrl
• Ho2s high sig
• Ho2s low sig
• Hot at all times
• Iat sens sig
• Ign 1 volt
• Inst/disp/ rfa/dlc fuse 5 10a
• Instrument panel fuse block (behind left kick panel)
• J122
• J221
• Lo spd cooling fan rly ctrl
• Low ref
• Maf sens sig
• Main rly ctrl
• Park/neutral sig
• Pnk
• Rear fuse block (left side of rear compt)
• Starter rly coil ctrl
• Starting/charging system
• Stop lamp sw sig

6.0L VIN Y, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009

List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009:

• (in fuel tank harness)
• Computer data lines system
• Driver information center (dic)
• Eng ign fuse 39 10a
• Engine control module (ecm) (right side of engine compt)
• Evaporative emission (evap) canister vent solenoid valve
• Fuel level sensor
• Fuel level sensor (secondary) (in fuel tank)
• Fuel lvl sens sig
• Fuel pump
• Fuel pump &
• Fuel tank vent
• G110 (right front of engine block)
• G304 (behind right kick panel)
• Gnd
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of left catalytic converter)
• Ho2s high sig
• Ho2s htr low
• Hot w/ ign relay energized
• Ign
• Ign 1 volt
• Instrument panel cluster (ipc)
• J120
• J330
• Lo spd gmlan serial data
• Logic
• Low oil pressure ind
• Malfunction ind
• Mass air flow (maf)/intake air temperature (iat) sensor (left front of engine compt, in air cleaner duct)
• Mil ctrl
• Oss high sig
• Oss low sig
• Output speed sensor (oss) (m/t)
• Pnk
• Sender assembly (in fuel tank)
• Sens sig
• Skip shift solenoid
• Skip shift solenoid (m/t)
• Underhood fuse block (mounted to right front strut tower)

6.0L VIN Y, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009

List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009:

• (in engine harness) j114
• (in engine harness) j121
• (in even ignition coil harness) j132
• Canister vent fuse 22 10a
• Ecm 1 fuse 15a
• Emission 1 fuse 15a
• Emission 2 fuse 32 15a
• Eng ign fuse 10a
• Evn coils fuse 20a
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• G110 (right front of engine block)
• Hot at all times
• Hot w/ ign relay 14 energized
• Ignition coil 2 (top left side of engine)
• Ignition coil 4 (top left side of engine)
• Ignition coil 6 (top left side of engine)
• Ignition coil 8 (top left side of engine)
• J120
• J141 (in even ignition coil harness)
• Knock sensor (ks) (right side of engine block)
• Knock sensor (ks) (top left rear of engine)
• Nca
• Odd coils fuse 20a
• Plug spark
• Pnk
• Pwr trn relay 13
• Spark plug
• Underhood fuse block (mounted to right front strut tower)

6.0L VIN Y, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009

List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009:

• (front of engine, above crankshaft pulley) camshaft position (cmp) sensor
• (in engine harness) j118
• (in odd ignition coil harness) j133
• (top of left cylinder bank) fuel injectors
• (top of right cylinder bank) fuel injectors
• 5v ref
• Ckp sens sig
• Cmp sens sig
• Crankshaft position (ckp) sensor (lower right rear of engine)
• Engine control module (ecm) (right side of engine compt)
• G112 (left rear of engine block)
• Gen turn on sig
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ignition coil 1 (top right side of engine)
• Ignition coil 3 (top right side of engine)
• Ignition coil 5 (top right side of engine)
• Ignition coil 7 (top right side of engine)
• J130
• J142 (in odd ignition coil harness)
• Low ref
• Nca
• Plug spark
• Pnk
• Sens sig
• Spark plug
• Starting/ charging system
• Tp sens 2 sig

6.0L VIN Y, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009

List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009:

• (left front of engine) engine coolant temperature (ect) sensor
• (m/t)
• (or reverse sol)
• (top front of engine) evaporative emission (evap) canister purge solenoid valve
• 5v ref
• Cyl shut off sol 1
• Cyl shut off sol 2
• Cyl shut off sol 3
• Cyl shut off sol 4
• Ect sens sig
• Emission (evap) canister purge solenoid valve
• Engine control module (ecm) (right side of engine compt)
• Engine oil level/ temperature sensor (right side of oil pan)
• Engine oil pressure (eop) sensor (top rear of engine)
• Evap cnstr purge sol ctrl
• 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 inj 7 ctrl
• Fuel inj 8 ctrl
• Gen field duty cycle sig
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in right bank exhaust manifold)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in left bank exhaust manifold)
• Ho2s high sig
• Ho2s htr low
• Ho2s low sig
• Hot w/ ign relay energized
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sens sig rtn
• Low ref
• Manifold absolute pressure (map) sensor (top front of engine)
• Map sens sig
• Oil lvl sw sig
• Oil press sens sig
• Oil temp sens sig
• Rev/lock fuse 25 15a
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Throttle body (center front of engine)
• Underhood fuse block (mounted to right front strut tower)
• Valve lifter oil manifold (vlom) assembly

6.2L VIN W

6.2L VIN W, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009

List of elements for 6.2L VIN W, Engine Performance Wiring Diagram (1 of 5) for Pontiac G8 GXP 2009:

• (right front of engine block) g106
• 5v ref
• 5v rtn brk booster vacuum
• A/c refrig press sens sig
• Acc wakeup serial data
• Accelerator pedal position (app) sensor (under left side of dash)
• Air conditioning system
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Backup lamp switch (m/t)
• Backup sw sig
• Batt positive volt
• Brk booster vacuum sens
• Clutch pedal position (cpp) sensor (m/t) (under left side of dash)
• Computer data lines system
• Cooling fans system
• Cpp sens sig
• Ecm batt fuse 10 15a
• Engine control module (ecm) (right side of engine compt)
• Exterior lights system
• Fuel lvl sens sig
• Fuel pump fuse 12 20a
• Fuel pump relay
• Fuel pump rly ctrl
• Fuel tank pressure (ftp) sensor
• Fuel tank vapour press
• G202 (behind left kick panel)
• Gmlan serial data bus+
• Gmlan serial data bus-
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of right catalytic converter)
• Hi spd cooling fan rly ctrl
• Ho2s high sig
• Ho2s low sig
• Hot at all times
• Iat sens sig
• Ign 1 volt
• Inst/disp/ rfa/dlc fuse 5 10a
• Instrument panel fuse block (behind left kick panel)
• J122
• J221
• Lo spd cooling fan rly ctrl
• Low ref
• Maf sens sig
• Main rly ctrl
• Park/neutral sig
• Pnk
• Rear fuse block (left side of rear compt)
• Starter rly coil ctrl
• Starting/charging system
• Stop lamp sw sig

6.2L VIN W, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009

List of elements for 6.2L VIN W, Engine Performance Wiring Diagram (2 of 5) for Pontiac G8 GXP 2009:

• (in fuel tank harness)
• Computer data lines system
• Driver information center (dic)
• Eng ign fuse 39 10a
• Engine control module (ecm) (right side of engine compt)
• Evaporative emission (evap) canister vent solenoid valve
• Fuel level sensor
• Fuel level sensor (secondary) (in fuel tank)
• Fuel lvl sens sig
• Fuel pump
• Fuel pump &
• Fuel tank vent
• G110 (right front of engine block)
• G304 (behind right kick panel)
• Gnd
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of left catalytic converter)
• Ho2s high sig
• Ho2s htr low
• Hot w/ ign relay energized
• Ign
• Ign 1 volt
• Instrument panel cluster (ipc)
• J120
• J330
• Lo spd gmlan serial data
• Logic
• Low oil pressure ind
• Malfunction ind
• Mass air flow (maf)/intake air temperature (iat) sensor (left front of engine compt, in air cleaner duct)
• Mil ctrl
• Oss high sig
• Oss low sig
• Output speed sensor (oss) (m/t)
• Pnk
• Sender assembly (in fuel tank)
• Sens sig
• Skip shift solenoid
• Skip shift solenoid (m/t)
• Underhood fuse block (mounted to right front strut tower)

6.2L VIN W, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009

List of elements for 6.2L VIN W, Engine Performance Wiring Diagram (3 of 5) for Pontiac G8 GXP 2009:

• (in engine harness) j114
• (in engine harness) j121
• (in even ignition coil harness) j132
• Canister vent fuse 22 10a
• Ecm 1 fuse 15a
• Emission 1 fuse 15a
• Emission 2 fuse 32 15a
• Eng ign fuse 10a
• Evn coils fuse 20a
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• G110 (right front of engine block)
• Hot at all times
• Hot w/ ign relay 14 energized
• Ignition coil 2 (top left side of engine)
• Ignition coil 4 (top left side of engine)
• Ignition coil 6 (top left side of engine)
• Ignition coil 8 (top left side of engine)
• J120
• J141 (in even ignition coil harness)
• Knock sensor (ks) (right side of engine block)
• Knock sensor (ks) (top left rear of engine)
• Nca
• Odd coils fuse 20a
• Plug spark
• Pnk
• Pwr trn relay 13
• Spark plug
• Underhood fuse block (mounted to right front strut tower)

6.2L VIN W, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009

List of elements for 6.2L VIN W, Engine Performance Wiring Diagram (4 of 5) for Pontiac G8 GXP 2009:

• (front of engine, above crankshaft pulley) camshaft position (cmp) sensor
• (in engine harness) j118
• (in odd ignition coil harness) j133
• (top of left cylinder bank) fuel injectors
• (top of right cylinder bank) fuel injectors
• 5v ref
• Ckp sens sig
• Cmp sens sig
• Crankshaft position (ckp) sensor (lower right rear of engine)
• Engine control module (ecm) (right side of engine compt)
• G112 (left rear of engine block)
• Gen turn on sig
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ignition coil 1 (top right side of engine)
• Ignition coil 3 (top right side of engine)
• Ignition coil 5 (top right side of engine)
• Ignition coil 7 (top right side of engine)
• J130
• J142 (in odd ignition coil harness)
• Low ref
• Nca
• Plug spark
• Pnk
• Sens sig
• Spark plug
• Starting/ charging system
• Tp sens 2 sig

6.2L VIN W, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009

List of elements for 6.2L VIN W, Engine Performance Wiring Diagram (5 of 5) for Pontiac G8 GXP 2009:

• (left front of engine) engine coolant temperature (ect) sensor
• (m/t)
• (or reverse sol)
• (top front of engine) evaporative emission (evap) canister purge solenoid valve
• 5v ref
• Cyl shut off sol 1
• Cyl shut off sol 2
• Cyl shut off sol 3
• Cyl shut off sol 4
• Ect sens sig
• Emission (evap) canister purge solenoid valve
• Engine control module (ecm) (right side of engine compt)
• Engine oil level/ temperature sensor (right side of oil pan)
• Engine oil pressure (eop) sensor (top rear of engine)
• Evap cnstr purge sol ctrl
• 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 inj 7 ctrl
• Fuel inj 8 ctrl
• Gen field duty cycle sig
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in right bank exhaust manifold)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in left bank exhaust manifold)
• Ho2s high sig
• Ho2s htr low
• Ho2s low sig
• Hot w/ ign relay energized
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sens sig rtn
• Low ref
• Manifold absolute pressure (map) sensor (top front of engine)
• Map sens sig
• Oil lvl sw sig
• Oil press sens sig
• Oil temp sens sig
• Rev/lock fuse 25 15a
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Throttle body (center front of engine)
• Underhood fuse block (mounted to right front strut tower)
• Valve lifter oil manifold (vlom) assembly