ENGINE PERFORMANCE – Saturn Sky 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L VIN X

2.0L VIN X, Engine Performance Wiring Diagram (1 of 4) for Saturn Sky 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (1 of 4) for Saturn Sky 2008:

• (at left side of engine compartment, mounted on inner frame rail) electronic brake control module (ebcm)
• (in engine harness, 5 cm from tan ignition coil 4 breakout) j140
• (left rear side of engine) evaporative emission (evap) canister purge solenoid valve
• (on brake vacuum booster) brake booster vacuum sensor
• (top front of engine) exhaust camshaft position (cmp) actuator solenoid
• (top front of engine) intake camshaft position (cmp) actuator solenoid
• 5v ref
• 5v ref 1
• 5v ref 2
• 5v ref 3
• Bus +
• Camshaft sol ctrl
• Ckp sens sig
• Cmp sens sig
• Computer data lines system
• Crankshaft position (ckp) sensor (left rear corner of engine block, above starter)
• Dfi hi volt ctrl cyl 2
• Dfi hi volt ctrl cyl 4
• Dfi hi volt sply cyl 2
• Dfi hi volt sply cyl 4
• Driver information center (dic)
• Early production
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• Evap can purge sol
• Exhaust camshaft position (cmp) sensor (top right rear of engine)
• Frp sens sig
• Fuel injector 2 (attached to fuel rail at number 2 cylinder)
• Fuel injector 4 (attached to fuel rail at number 4 cylinder)
• Fuel rail pressure (frp) sensor (left front of engine)
• Gen field sig
• Gen turn on sig
• Hi press fuel pmp
• Instrument cluster system
• Instrument panel cluster
• Intake camshaft position (cmp) sensor (top left rear of engine)
• J121 (in engine harness, 4.5 cm from g104 breakout)
• J126 (in engine harness, 4.5 cm from g104 breakout)
• Late production
• Logic
• Low ref
• Malfun- ction ind lamp
• Map sens sig
• Oil press sw sig
• Pnk
• Sens gnd
• Sens sply
• Sins sig
• Starting/charging system
• Tac mtr ctrl 2
• Tac open
• Tan
• Turbo bypass valve control solenoid
• Turbo bypass vlv ctrl
• Turbocharger wastegate solenoid
• Wastegate sol ctrl

2.0L VIN X, Engine Performance Wiring Diagram (2 of 4) for Saturn Sky 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (2 of 4) for Saturn Sky 2008:

• (in exhaust pipe, upstream of catalytic converter) heated oxygen sensor (ho2s) 1
• (left front
• (left rear
• (left side of engine) (late production) brake booster pump motor
• (lower left front of engine) knock sensor (ks) 1
• (lower left side of engine, above starter motor) knock sensor (ks) 2
• (on left side
• (top left rear of engine) high pressure fuel pump
• 5v ref 1
• A tan
• Absolute pressure (map) sensor
• Corner of engine block) engine coolant
• Dfi hi volt ctrl cyl 1
• Dfi hi volt ctrl cyl 3
• Dfi hi volt sply cyl 1
• Ect sens sig
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• Fuel injector 1 (attached to fuel rail at number 1 cylinder)
• Fuel injector 3 (attached to fuel rail at number 3 cylinder)
• G103 (right rear side of engine)
• Hi press fuel pmp
• Ho2s hi sig sens 1
• Ho2s htr low sens 1
• Ho2s input pmp current
• Ho2s low sig sens 1
• Ho2s pmp current sens 1
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• J141 (in engine harness, 15 cm from windshield washer fluid pump)
• J142 (in engine harness, 7 cm from map sensor breakout)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Mil ctrl
• Nca
• Of engine) intake air
• Of engine, near throttle body) manifold
• Pnk
• Pressure & temperature sensor
• Tan
• Temperature (ect) sensor
• Tmap air press sig
• Tmap temp sig
• Tp sens 1 sig
• Tp sens 2 sig

2.0L VIN X, Engine Performance Wiring Diagram (3 of 4) for Saturn Sky 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (3 of 4) for Saturn Sky 2008:

• (at right front corner of engine compt) g102
• (in engine harness, 3 cm from ignition coil 3 breakout) j123
• (in engine harness,11.5 cm from ignition coil 1 breakout) j117
• A11
• B10
• B12
• C12
• Can vent fuse 64 10a
• D11
• Ecm fuse 20a
• Ecm/trans fuse 43 15a
• Emissions fuse 33 10a
• F12
• Fuel pump fuse 13 15a
• Fuel pump relay 19
• G102 (at right front corner of engine compt)
• G103 (right rear side of engine)
• Heated oxygen sensor (ho2s) 2 (in exhaust pipe, downstream of catalytic converter)
• Hot at all times
• Hot in run or start
• I/p ign fuse 62 20a
• Ignition coil 1 (top of engine, above cylinder 1)
• Ignition coil 2 (top of engine, above cylinder 2)
• Ignition coil 3 (top of engine, above cylinder 3)
• Ignition coil 4 (top of engine, above cylinder 4)
• Inj/ ign mdl fuse 45 15a
• J105
• J107
• J124 (in engine harness, 3 cm from ignition coil 3 breakout)
• J201 (m/t)
• Late production
• Nca
• Pnk
• Pwr/trn relay 26
• Run/crnk relay 51
• Tan
• Throttle body
• Turbo fuse 41 10a
• Underhood fuse block (in right rear corner of engine compt)
• Vac pump fuse 32 20a
• Vac pump relay

2.0L VIN X, Engine Performance Wiring Diagram (4 of 4) for Saturn Sky 2008

List of elements for 2.0L VIN X, Engine Performance Wiring Diagram (4 of 4) for Saturn Sky 2008:

• (a/t)
• (at rear of fuel tank) evaporative emission (evap) canister vent solenoid valve
• (connected to fuel pump & sender assembly) fuel tank pressure (ftp) sensor
• (in engine harness,10 cm from brake fluid level switch breakout)
• (inside fuel tank) fuel pump & sender assembly
• 5v ref 1
• 5v ref 2
• 5v ref 3
• A/c comp clutch rly
• A/c refrgerent sens
• A/c refrigerant pressure sensor (at top left side of engine)
• Acc volt
• Accelerator pedal position (app) sensor (top of accelerator pedal bracket)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Backup lmp sply volt
• Batt pos volt
• Body control module (right of hvac module)
• Boost vacuum sens
• Clutch neutral start
• Clutch pedal position (cpp) sensor (top of clutch pedal lever)
• Computer data lines system
• Cool fan spd ctrl
• Cooling fans system
• Cpp sw sig
• Cruise control system
• Ecm/ tcm fuse 25 10a
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• Evap can vent sol
• Exterior lights system
• Ftp sens sig
• Fuel lvl sens sig
• Fuel pmp rly ctrl
• G104 (on right front corner of engine)
• G402
• Gnd
• Hi spd ser data +
• Hi spd ser data -
• Ho2s hi sig sens 2
• Ho2s low ctrl sens 2
• Ho2s low sig sens 2
• Hot at all times
• Hvac/ ip ign fuse 16 10a
• Iat sens sig
• Ign 1 volt
• J102 (in forward lamp harness,15 cm from brake fluid level switch breakout)
• J108
• J110
• J137
• J401
• J405 (in rear chassis harness, 82 cm from left rear wheel speed sensor)
• Logic
• Low ref
• Maf sens sig
• Main rly ctrl
• Mass air flow (maf)/intake air temperature (iat) sensor (at front of engine compt, in air intake duct)
• Park/neutral sig
• Pnk
• Sens sig pos
• Start rly coil ctrl
• Starting/ charging system
• Starting/charging system
• Stop lmp sply volt
• Tan
• Transmissions system
• Vacuum assist pmp
• Vehicle speed sensor (vss) (m/t) (on side of manual transmission)
• Vss hi sig
• Vss low sig

2.4L VIN B

2.4L VIN B, Engine Performance Wiring Diagram (1 of 4) for Saturn Sky 2008

List of elements for 2.4L VIN B, Engine Performance Wiring Diagram (1 of 4) for Saturn Sky 2008:

• 5-volt ref
• A/c comp clutch rly ctrl
• A/c ref press sens sig
• Acc
• Acc volt
• Acc voltage
• Accelerator pedal position (app) sensor (top of accelerator pedal bracket)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Batt
• Batt positive volt
• Body control module (bcm) (right of hvac module)
• C12
• Clstr fuse 7 10a
• Clutch pedal position (cpp) sensor (m/t) (top of clutch pedal lever)
• Clutch pos sens rtn
• Computer data lines system
• Cooling fan rly ctrl
• Cooling fans system
• Driver information center (dic)
• Ecm/ tcm fuse 10a
• Ecm/trans fuse 43 15a
• Enable rly ctrl
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• 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 (connected to fuel pump & sender assembly)
• G102 (at right front corner of engine compt)
• G304 (in passenger compt, mounted on rear support behind driver seat)
• G402
• Gnd
• Hi sp cooling ctrl
• Ho2s heater hi ctrl
• Ho2s heater lo ctrl
• Ho2s heater lo sens
• Hot at all times
• Ign 1 volt
• Ignition switch
• Instrument panel cluster (ipc)
• J206 (a/t)
• J216 (a/t)
• J401
• J410 (left tail light assembly)
• Lo spd gmlan serial data
• Logic
• Low ref
• Maf sens sig
• Mal- function ind
• Mil ctrl
• Off
• Pnk
• Powertrain rly ctrl
• Press sens sig
• Rly coil ctrl
• Run
• Run/ crank relay
• Serial data (+)
• Serial data (-) clutch position sens sply
• Start
• Starting/charging system
• Tan
• Tan c
• Underhood fuse block (in right rear corner of engine compt)
• Vehicle speed sensor (vss) (m/t) (on side of manual transmission)
• Vss signal high

2.4L VIN B, Engine Performance Wiring Diagram (2 of 4) for Saturn Sky 2008

List of elements for 2.4L VIN B, Engine Performance Wiring Diagram (2 of 4) for Saturn Sky 2008:

• (top left rear corner of engine) evaporative emission (evap) canister purge solenoid
• (top left rear of engine) intake camshaft position (cmp) sensor
• 5-volt ref
• A/c refrigerant pressure sensor (manual a/c) (at top left side of engine)
• A11
• B10
• Can vent fuse 64 10a
• Ecm fuse 15a
• Emissions fuse 33 10a
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• Evap sol ctrl
• Evaporative emission (evap) canister vent solenoid valve (at rear of fuel tank)
• Exterior lights system
• F12
• Fuel pump fuse 13 15a
• Fuel pump relay 19
• G102 (at right front corner of engine compt)
• G104 (on right front corner of engine)
• Hot at all times
• Iat sens sig
• Inj ign mdl fuse 45 10a
• J105
• J108
• J201 (m/t)
• Logic
• Manifold absolute pressure (map) sensor (on left side of engine, near throttle body)
• Mass air flow (maf)/intake air temperature (iat) sensor (at front of engine compt, in air intake duct)
• 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 right rear corner of engine compt)
• X1 contact sig powertrain rly

2.4L VIN B, Engine Performance Wiring Diagram (3 of 4) for Saturn Sky 2008

List of elements for 2.4L VIN B, Engine Performance Wiring Diagram (3 of 4) for Saturn Sky 2008:

• (attached to fuel rail, at cylinders) fuel injectors
• (in engine harness)
• (top of engine, above cylinders) ignition coils
• Crankshaft position (ckp) sensor (left rear corner of engine block, below starter)
• Engine coolant temperature (ect) sensor (left rear corner of engine block)
• Exhaust camshaft position (cmp) actuator solenoid (left of ignition coil 1)
• G103 (right rear side of engine)
• Heated oxygen sensor (ho2s) 2 (in exhaust pipe, downstream of catalytic converter)
• Intake camshaft position (cmp) actuator solenoid (left of ignition coil 1)
• J106
• J117 (in engine harness,11.5 cm from ignition coil 1 breakout)
• J119 (in fuel injector harness)
• Knock sensor (ks)
• Nca
• Plug spark
• Pnk
• Spark plug
• Tan

2.4L VIN B, Engine Performance Wiring Diagram (4 of 4) for Saturn Sky 2008

List of elements for 2.4L VIN B, Engine Performance Wiring Diagram (4 of 4) for Saturn Sky 2008:

• (top right rear of engine) exhaust camshaft position (cmp) sensor
• 5-volt ref
• 5-volt ref 1
• 5-volt ref 2
• Ckp sens 1 sig
• Cmp exhaust sens
• Cmp intake sens
• Ect sens sig
• Engine control module (ecm) (at left rear corner of engine compt, near brake master cylinder)
• Engine oil pressure (eop) switch (left rear of engine)
• Evap canister purge sol ctrl
• Exhaust cam sol ctrl
• Exhaust cam sol rtn
• Exhaust sens low ref
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• G104 (on right front corner of engine)
• Gen field duty cycle sig
• Generator turn on sig
• Heated oxygen sensor (ho2s) 1 (in exhaust pipe, upstream of catalytic converter)
• Ho2s heater lo ctrl
• Ho2s hi sig sen 1
• Ho2s lo sig sen 1
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Intake cam sol ctrl
• Intake sens low ref
• J108
• Knock sens 1 sig
• Low ref
• Map sens sig
• Nca
• Oil press sw sig
• Sig gnd
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Throttle body
• Tp sens 1 sig
• Tp sens 2 sig