ENGINE PERFORMANCE – Pontiac Sunfire SE 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.2L

2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Pontiac Sunfire SE 1999:

• (dash harn, 72 cm from bulkhead grommet)
• (i/p harn, left front of dash)
• (in engine compt fuse/relay center) fuel pump relay
• (others) (convertible)
• 5v ref
• A/c pres
• A/c refrigerant pressure sensor (right front of eng compt)
• A/t iss sens
• All times
• Battery
• C2 brake switch (on brake pedal support)
• Ckp ref
• Cls/pcm fuse 10a
• Cmp sens
• Coolant level switch (right side of eng compt)
• Cruise control brake switch (on brake pedal support)
• Data link connector (left side of dash)
• Ect sensor
• Engine compartment fuse/relay center
• Engine oil pressure switch (near oil filter)
• Erls fuse 10a
• F/p-inj fuse 20a
• Fuel pump
• Fuel tank module
• Fuel tank pres
• Fuel tank pressure sensor (top of fuel tank)
• Fuse block
• G115 (rear of engine)
• G300 (under driver's seat)
• Gen term f
• Gen term l
• Generator
• Hot at
• Hot in off, run, bulb test or start
• Hot in run, bulb test or start
• Ign
• Ign ctrl 1-4
• Ign ctrl 2-3
• Ign fuse 20a
• Inj 1
• Inj 2
• Knock sensor (right side of eng)
• Ks signal
• Low coolant sw
• Map sensor
• Nca
• Oil pres
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pcm/ign fuse 10a
• Pnk
• Powertrain control module (right front corner eng compt)
• Red
• S171
• S214
• S242
• S277
• S330 s332
• Serial data
• Tan
• Tcc bk sw
• Tft sensor
• Throttle position sensor (on throttle body assy)
• Tp sensor
• Tr sw a
• Tr sw input b
• Tr sw input c
• Tr sw input p
• Transaxle range switch
• Tx range a
• Tx range b
• Tx range c
• Uart data line
• Vss high
• W/ cruise control
• W/o cruise control

2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Pontiac Sunfire SE 1999:

• (4 speed only)
• (engine harness, 27 cm from bulkhead connector)
• 1-2 shift solenoid valve
• 1-4 coil ctrl
• 2-3 coil ctrl
• 2-3 shift solenoid valve
• A pnk
• Automatic transaxle
• Automatic transaxle fluid pressure valve manual position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor b
• Ckp gnd
• Ckp sig
• Coil pos
• Crankshaft position sensor (right side of eng)
• Engine coolant temperature sensor (front left of engine)
• Fuel injectors
• Gnd
• Ign
• Ign ctrl a
• Ign ctrl b
• Ignition control module (top rear of eng)
• Pnk
• Pressure control solenoid valve
• Red
• Ref low
• Ref sig
• S121
• Tan
• To spark plugs
• Torque converter clutch pwm solenoid valve
• Vehicle speed sensor (front of transaxle)

2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Pontiac Sunfire SE 1999:

• (chevrolet)
• (pontiac)
• 1-2 ss valve
• 2-3 ss valve
• A/ pres +5v
• A/c clutch rly
• A/c system
• A/t iss sens
• A5 a8
• Automatic transaxle (3 speed only)
• Camshaft position sensor (right side of eng)
• Cmp sens b+
• Cmp sens gnd
• Cooling fans system
• Cruise control system
• Cruise diable
• Cruise engaged
• Ect sens
• Erls fuse 10a
• Evap can vnt
• Evap canp
• Evaporative emission canister purge valve (left front of eng)
• Evaporative emission canister vent solenoid (right front of eng compt)
• F pump rly
• Fuse block
• G115 (rear of eng)
• Hot in run
• Hot in run, bulb test or start
• Iac coil a hi
• Iac coil a lo
• Iac coil b hi
• Iac coil b lo
• Iat sens
• Iat sens sig
• Icm ref lo
• Idle air control valve (on throttle body assembly)
• Ign
• Inj 3 driver
• Inj 4 driver
• Instrument cluster
• Instrument cluster system
• Intake air temperature sensor (on air cleaner duct assembly)
• Lt fan ctrl
• Malfunction indicator lamp
• Manifold absolute pressure sensor (side of throttle body)
• Map sens +5v
• Map sensor
• Mil ctrl
• Nca
• O2 htr fuse 10a
• Pc sol
• Pc sol vlv ctrl
• Pcm gnd
• Pnk
• Pnk a
• Post conv o2
• Post- converter heated oxygen sensor (behind catalytic converter)
• Powertrain control module (right front corner eng compt)
• Pre conv o2
• Pre- converter oxygen sensor (on exhaust manifold)
• Red
• Red a
• S101
• S107
• S171
• Tan
• Tan b
• Tcc pwm sol
• Tcc release
• Tcc sol (3 spd)
• Tft sensor
• Third clutch pressure switch
• Torque converter clutch solenoid
• Tp sens +5v
• Vss low
• Vss out

2.4L

2.4L VIN T, Engine Performance Wiring Diagrams (1 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (1 of 3) for Pontiac Sunfire SE 1999:

• (dash harn, 75 cm from bulkhead grommet)
• (i/p harn, left front of i/p)
• (left center of eng compt) fuel pump relay
• (others) (convertible)
• 5v ref
• A/c pres
• A/c refrigerant pressure sensor (right front of eng compt)
• A/t iss sens
• All times
• Battery
• C2 brake switch (brake pedal support)
• Ckp ref
• Cls/pcm fuse 10a
• Cmp sens
• Coolant level switch (right side of eng compt)
• Cruise control brake switch (brake pedal support)
• Data link connector (left side of dash)
• Ect sensor
• Engine compartment fuse/relay center
• Engine oil pressure switch (top rear of engine)
• Erls fuse 10a
• F/p-inj fuse 20a
• Fuel pump
• Fuel tank module
• Fuel tank pres
• Fuel tank pressure sensor (top of fuel tank)
• Fuse block
• G115 (rear of engine)
• G300 (under driver's seat)
• Gen term f
• Gen term l
• Generator
• Hot at
• Hot in off, run, bulb test or start
• Hot in run, bulb test or start
• Ign
• Ign ctrl 1-4
• Ign ctrl 2-3
• Ign fuse 20a
• Inj 1
• Inj 2
• Knock sensor (right rear of eng)
• Ks signal
• Low coolant sw
• Map sensor
• Nca
• Oil pres
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pcm/ign fuse 10a
• Pnk
• Powertrain control module (right front corner eng compt)
• Red
• S121 (eng harn, left front of engine)
• S171
• S214
• S242
• S277
• S330 s332
• Serial data
• Tan
• Tcc bk sw
• Tft sensor
• Throttle position sensor (throttle body assy)
• Tp sensor
• Tr sw a
• Tr sw input b
• Tr sw input c
• Tr sw input p
• Transaxle range switch
• Tx range a
• Tx range b
• Tx range c
• Uart data line
• Vss high
• W/ cruise control
• W/o cruise control

2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Pontiac Sunfire SE 1999:

• (fuel injector harness, 30 cm from 5-pin clear connector at center rear of eng compt)
• 1-2 shift solenoid valve
• 1-4 coil ctrl
• 2-3 coil ctrl
• 2-3 shift solenoid valve
• A pnk
• Automatic transaxle
• Automatic transaxle fluid pressure valve manual position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor b
• C red
• Ckp gnd
• Ckp sig
• Coil pos
• Crankshaft position sensor (left front of eng)
• Engine coolant temperature sensor (rear of engine)
• Fuel injectors
• Gnd
• Ic input 1-4
• Ic input 2-3
• Ign
• Ignition coils
• Ignition control module (on top left of eng)
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• Ref low
• Ref sig
• S165
• Tan
• To spark plugs
• Torque converter clutch pwm solenoid valve
• Vehicle speed sensor (right front transaxle)

2.4L VIN T, Engine Performance Wiring Diagrams (3 of 3) for Pontiac Sunfire SE 1999

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (3 of 3) for Pontiac Sunfire SE 1999:

• (chevrolet)
• (pontiac)
• 1-2 ss valve
• 2-3 ss valve
• A/ pres +5v
• A/c clutch rly
• A/c system
• A/t iss sens
• A5 a8
• Camshaft position sensor (top left of eng)
• Cmp sens b+
• Cmp sens gnd
• Cooling fans system
• Cruise control system
• Cruise diable
• Cruise engaged
• Ect sens
• Engine compartment fuse/relay center
• Erls fuse 10a
• Evap can vnt
• Evap canp
• Evaporative emission canister purge valve (left front of eng)
• Evaporative emission canister vent solenoid (right front of eng compt)
• F pump rly
• Fuse block
• G115 (rear of engine)
• Gnd
• Hot in run
• Hot in run, bulb test or start
• Iac coil a hi
• Iac coil a lo
• Iac coil b hi
• Iac coil b lo
• Iat sens
• Iat sens sig
• Icm ref lo
• Idle air control valve (on throttle body assy)
• Ign
• Inj 3 driver
• Inj 4 driver
• Instrument cluster
• Instrument cluster system
• Intake air temperature sensor (on air cleaner outlet duct assy)
• Lt fan ctrl
• Malfunction indicator lamp
• Manifold absolute pressure sensor (side of throttle body)
• Map sens +5v
• Map sensor
• Mil ctrl
• Nca
• O2 htr fuse 10a
• Pc sol
• Pc sol vlv ctrl
• Pcm gnd
• Pjj only all other models are case grounded
• Pnk
• Pnk a
• Post conv o2
• Post- converter heated oxygen sensor (rearward of catalytic converter)
• Powertrain control module (right front corner eng compt)
• Pre conv o2
• Pre- converter oxygen sensor (on exhaust manifold)
• Red
• Red c
• S101
• S107
• S171
• Tach sig
• Tachometer out
• Tan
• Tan b
• Tcc pwm sol
• Tcc release
• Tft sensor
• Tp sens +5v
• Vss low
• Vss out