ENGINE PERFORMANCE – Chevrolet HHR LS 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L VIN X

2.0L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet HHR LS 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet HHR LS 2008:

• (top front of engine) exhaust camshaft position (cmp) actuator solenoid
• (top front of engine) intake camshaft position (cmp) actuator solenoid
• 5 volt ref 1
• 5 volt ref 3
• 5-volt ref 2
• Body control module (bcm) (under center dash, below radio, on right side of center console)
• Ckp sens sig
• Clstr fuse 7 10a
• Cmp exhaust sens sig
• Cmp intake sens sig
• Computer data lines system
• Dfi hi volt ctrl cyl 1
• Dfi hi volt ctrl cyl 2
• Dfi hi volt ctrl cyl 3
• Dfi hi volt ctrl cyl 4
• Dfi hi volt sply cyl 2
• Dfi hi volt sply cyl 3
• Dfi hi volt sply cyl 4
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine oil ind
• Engine oil pressure (eop) switch
• Evap cnstr purge sol ctrl
• Exhaust sol ctrl
• Frp sens sig
• Fuel injectors
• Fuel rail pressure (fpr) sensor
• Gen field duty cycle sig
• Generator turn on sig
• Hi press fuel pump actr hi ctrl
• High pressure fuel pump
• Hot at all times
• Ic 1 ctrl
• Ic 4 ctrl
• Instrument panel cluster (ipc)
• Intake sol ctrl
• J121
• Knock sensor (ks) 1
• Knock sensor (ks) 2
• Ks 1 sig
• Ks 2 sig
• Lo spd gmlan serial data
• Logic
• Low ref
• Mal- function ind
• Map sens sig
• Mil ctrl
• Oil press sw sig
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Turbo bypass vlv ctrl
• Turbocharger bypass valve solenoid
• Turbocharger wastegate solenoid
• Up shift ind
• Wastegate sol ctrl

2.0L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet HHR LS 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet HHR LS 2008:

• (on top of engine) ignition coil/module
• (tmap) air press sig air temp and press
• (tmap) temp sig air temp and press
• 5 volt ref 1
• Acc
• Acc voltage
• Actr lo ctrl
• Body control module (bcm) (under center dash, below radio, on right side of center console)
• Crankshaft position (ckp) sensor
• Direct fuel injector (dfi)
• Ecm/tcm fuse 25 10a
• Ect sens sig
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• G108 (right rear of engine block)
• Heated oxygen sens
• Hi press fuel pump
• Hi vol sply cyl 1
• Ho2s hi sig sens 1
• Ho2s lo sig sens 1
• Ho2s pump current sens 1
• Hot at all times
• Ic 2 ctrl
• Ic 3 ctrl
• Ignition switch
• In pump current sens 1
• J117
• J123
• J124
• Ks 1 sig
• Ks 2 sig
• Lo ref
• Logic
• Low ref
• Manifold absolute pressure (map) sensor
• Nca
• Off
• Pre-throttle
• Rly coil ctrl
• Run
• Spark plug
• Start
• Tan
• Tp sens 1 sig
• Tp sens 2 sig

2.0L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet HHR LS 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet HHR LS 2008:

• (not used)
• (under right tail/stop & turn signal light) g402
• A/c refrigerant pressure sensor (in right front of engine compt,
• A11
• B10
• C12
• Cnstr vent fuse 64 10a
• Ecm fuse 41 20a
• Engine coolant temperature (ect) sensor
• Evaporative emission (evap) canister purge solenoid valve
• Exh fuse 33 10a
• Exhaust camshaft position (cmp) sensor
• F12
• Fuel level sensor
• Fuel pump
• Fuel pump & sender assembly (inside fuel tank)
• Fuel pump fuse 13 15a
• Fuel pump relay 19
• G102
• Heated oxygen sensor (ho2s) 1
• Hot at all times
• Inj ign mdl fuse 45 10a
• Intake air pressure & temperature sensor
• Intake camshaft position (cmp) sensor
• J114
• J115
• J126
• J140
• Lnf prwtn fuse 42 10a
• Nca
• On a/c line, near compressor)
• Pwr/trn relay 26
• Tan
• Underhood fuse block (in engine compartment, next to left strut tower)

2.0L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet HHR LS 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet HHR LS 2008:

• (under rear of vehicle, behind fuel tank attached to evap canister) evaporative emission (evap) canister vent solenoid valve
• 5 volt ref 1
• 5 volt ref 2
• 5 volt ref 3
• A/c compressor clutch rly ctrl
• A/c refr press sens lo ref
• A/c refr press sens sig
• A10
• A11
• Acc volt hi spd gmlan serial data bus (+)
• Accelerator pedal position (app) sensor (near accelerator pedal bracket)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Batt positive volt
• Clutch pedal position (cpp) sensor (m/t)
• Computer data lines system
• Cooling fan spd ctrl
• Cooling fans system
• Cpp sens
• Crnk rly ctrl
• Ecm/trans fuse 43 15a
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Evap canister vent sol ctrl
• Exterior lights system
• Fuel lvl sens sig
• Fuel pump rly ctrl
• Fuel tank press sens sig
• Fuel tank pressure (ftp) sensor (on top of fuel tank)
• G104
• G109 (on left front shock tower)
• Gmlan serial data bus (-)
• Gnd
• Heated oxygen sensor (ho2s) 2
• Ho2s htr low ctrl sens 2
• Hot at all times
• Ign 1 volt
• Induction air temp sens sig
• J101
• J113
• J211
• Low ref
• Low ref heated oxygen low sig sens 2
• Maf sens sig
• Mass air flow (maf)/intake air temperature (iat) sensor
• Nca
• Oss high sig
• Oss low sig
• Pnk
• Powertrain rly coil ctrl
• Run/ crank relay 51
• Starting/ charging system
• Starting/charging system
• Stop lamp sply volt
• Tan
• Throttle body
• Tps1
• Tps2
• Trans park/neutral sig
• Underhood fuse block (in engine compartment, next to left strut tower)
• Vehicle speed sensor (vss) (m/t) (at rear of engine, on top of transmission)

2.2L VIN D

2.2L VIN D, Engine Performance Wiring Diagram (1 of 3) for Chevrolet HHR LS 2008

List of elements for 2.2L VIN D, Engine Performance Wiring Diagram (1 of 3) for Chevrolet HHR LS 2008:

• (under right tail/stop & turn signal light) g402
• 5-volt ref
• A10
• A11
• Acc
• Acc volt
• Acc voltage
• Accelerator pedal position (app) sensor (near accelerator pedal bracket)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Batt positive volt
• Body control module (bcm) (under center dash, below radio, on right side of center console)
• Clutch pedal position (cpp) sensor (m/t)
• Clutch pos sens rtn
• Clutch rly ctrl
• Computer data lines system
• Cooling fan rly ctrl
• Cooling fans system
• Ecm/tcm fuse 25 10a
• Ecm/trans fuse 43 15a
• Enable rly ctrl
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine oil pressure ind
• Fuel level sensor
• Fuel lvl sens sig
• Fuel pump
• Fuel pump & sender assembly (inside fuel tank)
• Fuel pump rly ctrl
• Fuel tank pressure sensor (on top of fuel tank)
• G109 (on left front shock tower)
• Hot at all times
• Ign 1 volt
• Ignition switch
• Instrument panel cluster (ipc)
• J101
• J206 (a/t)
• Lo spd gmlan serial data
• Logic
• Low ref
• Maf sens sig
• Malf- unction ind
• Mil ctrl
• Off
• Power distribution system
• Powertrain rly ctrl
• Press sens sig
• Rly coil ctrl
• Run
• Run/ crank relay 51
• Serial data (+)
• Serial data (-) clutch pos sens sply
• Start
• Starting/charging system
• Tan
• Transmissions system
• Underhood fuse block (in engine compartment, next to left strut tower)
• Up shift ind
• Vehicle speed sensor (m/t) (at rear of engine, on top of transmission)
• Vss sig high
• Vss sig low

2.2L VIN D, Engine Performance Wiring Diagram (2 of 3) for Chevrolet HHR LS 2008

List of elements for 2.2L VIN D, Engine Performance Wiring Diagram (2 of 3) for Chevrolet HHR LS 2008:

• (left rear of engine) intake camshaft position (cmp) sensor
• (not used)
• (on top rear of engine) evaporative emission (evap) canister purge solenoid
• 5-volt ref
• A/c refrigerant pressure sensor (in right front of engine compt,
• A11
• C12
• Clutch pos
• Cnster vent fuse 64 10a
• Ecm fuse 41 20a
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle, behind fuel tank attached to evap canister)
• Exh fuse 33 10a
• Exterior lights system
• F12
• Fuel pump fuse 13 15a
• Fuel pump relay 19
• G107 (on front left corner of transmission)
• G109 (on left front shock tower)
• Hot at all times
• Iat sens sig
• Inj ign mdl fuse 45 10a
• J101
• J103
• Manifold absolute pressure (map) sensor (top left side of engine, at number 3 intake port runner)
• Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt, attached to air cleaner outlet)
• On a/c line, near compressor)
• Pnk
• Pwr/trn relay 26
• Sens sig
• Start sig
• Starting/ charging system
• Stop lp sply volt
• Tan
• Underhood fuse block (in engine compartment, next to left strut tower)
• Vent sol ctrl
• X1 contact sig powertrain rly

2.2L VIN D, Engine Performance Wiring Diagram (3 of 3) for Chevrolet HHR LS 2008

List of elements for 2.2L VIN D, Engine Performance Wiring Diagram (3 of 3) for Chevrolet HHR LS 2008:

• (in engine harness, near top of engine, approximately 13 cm from breakout to ignition coil 1 breakout)
• (on top of engine) ignition coil/modules
• (top left side of engine) fuel injectors
• 5-volt ref
• 5v ref 1
• Ckp sens 1
• Cmp sens sig
• Crankshaft position (ckp) sensor (above starter motor)
• Ect sens sig
• Engine control module (ecm) (left side of engine compt, in front of
• Engine coolant temperature (ect) sensor (top right rear of engine)
• Engine oil pressure (eop) switch (left side of engine, above starter solenoid)
• Evap sol ctrl
• G107 (on front left corner of transmission)
• G108 (right rear of engine block)
• Gen sig
• Gen turn sig
• Heated oxygen sensor (ho2s) 1 (in rear of engine compt, in exhaust manifold)
• Heated oxygen sensor (ho2s) 2 (in rear of engine compt, in exhaust near catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo ref
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• J103
• J104
• J105
• J106
• J107
• Knock sensor (ks) (left side of engine)
• Low ref
• Map sens sig
• Mtr ctrl 1
• Mtr ctrl 2
• Nca
• Plug spark
• Pnk
• Press sw sig
• Ref volt
• Sens 1 sig
• Sens 2 sig
• Sens gnd
• Sig gnd
• Spark plug
• Starting/ charging system
• Starting/charging system
• Tan
• Throttle actuator control (tac) module (top of engine)
• Tp sens 1 sig
• Tp sens 2 sig
• Tps1
• Tps2
• Underhood fuse block)

2.4L VIN P

2.4L VIN P, Engine Performance Wiring Diagram (1 of 4) for Chevrolet HHR LS 2008

List of elements for 2.4L VIN P, Engine Performance Wiring Diagram (1 of 4) for Chevrolet HHR LS 2008:

• (under right tail/stop & turn signal light) g402
• 5-volt ref
• A10
• A11
• Acc
• Acc volt
• Acc voltage
• Accelerator pedal position (app) sensor (near accelerator pedal bracket)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Batt positive volt
• Body control module (bcm) (under center dash, below radio, on right side of center console)
• Clutch pedal position (cpp) sensor (m/t)
• Clutch pos sens rtn
• Clutch rly ctrl
• Computer data lines system
• Cooling fan rly ctrl
• Cooling fans system
• Ecm/tcm fuse 25 10a
• Ecm/trans fuse 43 15a
• Enable rly ctrl
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine oil ind
• Fuel level sensor
• Fuel lvl sens sig
• Fuel pump
• Fuel pump & sender assembly (inside fuel tank)
• Fuel pump rly ctrl
• Fuel tank pressure (ftp) sensor (on top of fuel tank)
• G109 (on left front shock tower)
• Ground
• Hot at all times
• Ign 1 volt
• Ignition switch
• Instrument panel cluster (ipc)
• J101
• J206 (a/t)
• Lo spd gmlan serial data
• Logic
• Low ref
• Maf sens sig
• Mal- function ind
• Mil ctrl
• Off
• Power distribution system
• Powertrain rly ctrl
• Press sens sig
• Rly coil ctrl
• Run
• Run/ crank relay 51
• Serial data (+)
• Serial data (-) clutch position sens sply
• Start
• Starting/charging system
• Tan
• Transmissions system
• Underhood fuse block (in engine compartment, next to left strut tower)
• Up shift ind
• Vehicle speed sensor (vss) (m/t) (at rear of engine, on top of transmission)
• Vss signal high
• Vss signal low

2.4L VIN P, Engine Performance Wiring Diagram (2 of 4) for Chevrolet HHR LS 2008

List of elements for 2.4L VIN P, Engine Performance Wiring Diagram (2 of 4) for Chevrolet HHR LS 2008:

• (left rear of engine) intake camshaft position (cmp) sensor
• (not used)
• (top rear of engine) evaporative emission (evap) canister purge solenoid valve
• 5-volt ref
• A/c refrigerant pressure sensor (in right front of engine compt,
• A11
• C12
• Cnstr vent fuse 64 10a
• Ecm fuse 41 20a
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Evap sol ctrl
• Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle, behind fuel tank attached to evap canister)
• Exh fuse 33 10a
• Exterior lights system
• F12
• Fuel pump fuse 13 15a
• Fuel pump relay 19
• G107 (on front left corner of transmission)
• G109 (on left front shock tower)
• Hot at all times
• Iat sens sig
• Inj ign mdl fuse 45 10a
• J101
• J103
• Manifold absolute pressure (map) sensor (top of intake manifold)
• Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt, attached to air cleaner outlet)
• On a/c line, near compressor)
• Pnk
• Pwr/trn relay 26
• Sens sig clutch position
• Start sig
• Start sw sig
• Starting/ charging system
• Stop lp sply volt
• Tan
• Underhood fuse block (in engine compartment, next to left strut tower)
• X1 contact sig powertrain rly

2.4L VIN P, Engine Performance Wiring Diagram (3 of 4) for Chevrolet HHR LS 2008

List of elements for 2.4L VIN P, Engine Performance Wiring Diagram (3 of 4) for Chevrolet HHR LS 2008:

• (in engine harness, near top of engine, approximately 13 cm from breakout to ignition coil 1 breakout)
• (on top of engine) ignition coil/module
• (top front of engine, under fuel rail assembly) fuel injectors
• Crankshaft position (ckp) sensor (lower left rear of engine block)
• Engine coolant temperature (ect) sensor (right side of engine, near rear of exhaust manifold)
• Exhaust camshaft position (cmp) actuator solenoid (top front of engine)
• G108 (right rear of engine block)
• Intake camshaft position (cmp) actuator solenoid (top front of engine)
• J104
• J105
• J106
• Knock sensor (ks) (lower left rear of engine block)
• Nca
• Plug spark
• Pnk
• Spark plug
• Tan

2.4L VIN P, Engine Performance Wiring Diagram (4 of 4) for Chevrolet HHR LS 2008

List of elements for 2.4L VIN P, Engine Performance Wiring Diagram (4 of 4) for Chevrolet HHR LS 2008:

• (right rear of engine) exhaust camshaft position (cmp) sensor
• 5-volt ref
• Ckp sens 1 sig
• Cmp exhaust sens
• Cmp intake sens
• Ect sens sig
• Engine control module (ecm) (left side of engine compt, in front of
• Engine oil pressure (eop) switch (lower left rear of engine block)
• Evap canister purge sol ctrl
• Exhaust cam sol ctrl
• Exhaust cam sol rtn
• Exhaust sens low ref
• Exhaust sens sply volt
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• G107 (on front left corner of transmission)
• Gen field duty cycle sig
• Generator turn on sig
• Heated oxygen sensor (ho2s) 1 (right side of engine, in exhaust manifold)
• Heated oxygen sensor (ho2s) 2 (in rear of engine compt, in exhaust near catalytic converter)
• Ho2s heater lo ctrl
• Ho2s hi sig
• Ho2s lo ref
• Ho2s ref volt
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Intake cam sol ctrl
• Intake cam sol rtn
• Intake sens low ref
• Intake sens sply volt
• J103
• Knock sens 1 sig
• Knock sens 2 sig
• Low ref
• Map sens sig
• Nca
• Oil press sw sig
• Sens gnd
• Sig gnd
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Throttle actuator control (tac) module (top of intake manifold)
• Tp sens 1 sig
• Tp sens 2 sig
• Tps1
• Tps2
• Underhood fuse block)