ENGINE PERFORMANCE – Chevrolet Cavalier LS 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.2L

2.2L CNG, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Cavalier LS 2002

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Cavalier LS 2002:

• (behind left headlamp) fuel gauge relay
• (below left front seat) g304
• (engine harn, near breakout to fuse/ relay center)
• (engine harn, near breakout to iat sensor)
• 87a
• A/c clutch relay
• A/c press 5v ref
• A/c press low ref
• A/c press sens sig
• A/c refrigerant pressure sensor (right front corner of eng compt)
• A/c system
• Afo input
• Alternate fuel pump relay (behind left headlamp)
• Battery
• Bcm/clu fuse 10a
• Body control module
• Brake sw
• Class 2 serial data
• Computer data lines system
• Cool fan control
• Cooling fans system
• Cruise control module (right rear of engine compt)
• Cruise control release switch (w/ cruise control)
• Cruise control system
• Cruise inhibit sig
• Engine compartment fuse/relay center (left front of engine compt)
• Erls fuse 10a
• Evap vent sol
• Evaporative emission canister vent solenoid (under rear of vehicle)
• F/p-inj fuse 15a
• Ftp sens 5v ref
• Ftp sens low ref
• Ftp sens sig
• Fuel level sig
• Fuel pump
• Fuel pump & sender assembly
• Fuel pump ctrl
• Fuel pump relay
• Fuel tank pressure sensor (top of fuel tank)
• G110 (on left side of engine/ trans)
• G112 (on left side of engine/trans)
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iat sens 5v ref
• Iat sens low ref
• Ignition
• Instrument panel cluster
• Intake air temperature sensor (on air cleaner outlet duct assembly)
• Malfunction indicator lamp
• Mil control
• Pcm fuse 10a
• Pnk
• Powertrain control module (right rear of engine compt)
• S004
• S006
• S013
• S018
• S121
• S214 pnk
• S330
• Solid state
• Speed sig
• Stop lamp switch (w/o cruise control)
• Tan

2.2L CNG, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Cavalier LS 2002

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Cavalier LS 2002:

• (behind left headlamp) af d3
• (behind left headlamp) ignition relay
• (behind left headlamp) lock-off relay
• (engine harn, near breakout
• (engine harn, near breakout to ign relay)
• (engine harn, near breakout to lpl sol) s008
• (left side
• (left side dash)
• (left side of engine/ trans) g112
• (left side of trunk) high pressure lock-off solenoid
• (near breakout hpl sol)
• (near breakout lpl sol)
• (pins 10-20)
• (pins 6-11 not used)
• (top center of engine) gas mass sensor (gms)
• (top right of engine) low pressure lock-off solenoid
• 1x cam sens
• 5v ref
• 7x crank sens
• Actual flow
• Actual gas flow
• Af d1
• Af d2
• Af ecu bat
• Af ecu gnd
• Af ecu ign 1
• Afo enable
• Alternative fuel engine control unit (behind left headlight)
• C001
• C002
• C003
• Cng fuse 20a
• Computer data lines system
• Desired flow
• Desired gas flow
• Ect sens sig
• Engine compartment fuse/relay center (left front of engine compt)
• Engine sync
• Evap can purge
• Evap canister
• Fps 5v ref
• Fps sig
• Fps/fts sens gnd
• Fts sig
• Fuel gage rly
• Fuel gage select
• Fuel gauge select switch
• Fuel ind cntl
• Fuel lvl out
• Fuel pmp rly
• Fuel tank pressure sensor (left of trunk)
• Fuel tank temp- erature sensor (left of trunk)
• Gm8 fault
• Gms fault
• Ground
• Hot at all times
• Hpl sol
• Iac coil a hi
• Iac coil a lo
• Iac coil b hi
• Iac coil b lo
• Iat sens sig
• Ignition
• Low press sol
• Lpl sol
• Map
• Mil
• Mil ctrl
• Mixture control valve motor (top of engine)
• Motor gnd
• Motor pwr
• Not used
• O2s hi sig
• O2s lo sig
• Of engine/ trans) g112
• Pnk
• Production use only
• Red
• Red (near left dash pass- through grommet)
• S001
• S002
• S003
• S005
• S006
• S007
• S009
• S028
• S029
• S450
• S452
• Sens gnd
• Serial data
• Serial data (cl 2)
• Tan
• To af ecm)
• Tps sig
• Vehicle speed

2.2L CNG, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Cavalier LS 2002

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Cavalier LS 2002:

• (engine harn, near breakout to cmp sensor)
• (engine harn, near breakout to evap/ect)
• (engine harn, near breakout to iat sensor)
• (on left side of engine/ trans) g110
• (right side of engine) crankshaft position sensor
• 1-2 shift sol
• 2-3 shift sol
• Automatic transaxle
• Automatic transaxle fluid pressure manual valve position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor
• Camshaft position sensor (right side of engine)
• G110 (on left side of engine/ transmission)
• Gnd
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Ign fuse 20a
• Ignition coils
• Ignition control module (top rear of engine)
• Inter- connect
• Manifold absolute pressure sensor (side of throttle body)
• P,r,n,d4,lo
• Pnk
• Pressure control sol
• Red
• Release tcc
• Rev,d,2,1
• S020
• S021 (front of engine)
• S1010
• S1011
• S121
• S171
• Tan
• Tcc pwm sol
• Transaxle range switch (top of transaxle)

2.2L CNG, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Cavalier LS 2002

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Cavalier LS 2002:

• (engine harn, near breakout to evap valve) s016
• (engine harn, near breakout to evap/ect)
• (engine harn, near breakout to iac valve)
• (engine harn, near breakout to o2 sensors)
• (near breakout to ect sensor)
• (pins 3-4 not used)
• 1-2 ss
• 2-3 ss
• Ckp 7x ref sig
• Cmp sens 12v ref
• Cmp sens low ref
• Cmp sens sig
• Cruise engage sig
• Ect sens low ref
• Ect sens sig
• Engine coolant temperature sensor (left front of engine)
• Erls fuse 10a
• Evap purge sol
• Evaporative emission canister purge solenoid (lower right side of engine)
• Fuel injectors
• G110 (on left side of engine/ transmission)
• Gen field duty sig
• Gen turn on sig
• Generator
• Heated oxygen sensor 1 (forward of catalytic converter)
• Heated oxygen sensor 2 (rearward of catalytic converter)
• Ho2s 1 high sig
• Ho2s 1 htr ctrl
• Ho2s 1 low sig
• Ho2s 2 high sig
• Ho2s 2 htr ctrl
• Ho2s 2 low sig
• Hot in run
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iac coil a high
• Iac coil a low
• Iac coil b high
• Iac coil b low
• Ic low ref
• Ic timing ctrl
• Idle air control valve (on throttle body assy)
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Iss high
• Iss low
• Knock sens
• Knock sensor (right rear of engine)
• Map sens 5v ref
• Map sens low ref
• Map sens sig
• Nca
• O2 htr fuse 10a
• Oil press sig
• Oil pressure sensor (center rear of engine)
• Pc sol high
• Pc sol low
• Pcm ground
• Pnk
• Powertrain control module (right rear of engine compt)
• Red
• S014
• S015
• S017
• S019
• S024
• S025
• S026
• S027
• S107
• S126
• S171
• Tan
• Tcc release sig
• Tcc sol
• Tfp sw a
• Tfp sw b
• Tfp sw c
• Tft sens sig
• Tft sesn low ref
• Throttle position sensor (on throttle body assy)
• Tp sens 5v ref
• Tp sens low ref
• Tp sens sig
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Vehicle speed sensor (on rear transaxle)
• Vss high
• Vss low

2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002:

• A/c clutch relay
• A/c press 5v ref
• A/c press low ref
• A/c press sens sig
• A/c refrigerant pressure sensor (right front corner of eng compt)
• A/c system
• A17
• A19
• B17
• B19
• Battery
• Bcm/clu fuse 10a
• Body control module
• Brake sw
• Class 2 serial data
• Computer data lines system
• Cool fan control
• Cooling fans system
• Cruise control module (right rear of engine compt)
• Cruise control release switch (w/ cruise control)
• Cruise control system
• Cruise inhibit sig
• Erls fuse 10a
• Evap vent sol
• Evaporative emission canister vent solenoid (under rear of vehicle)
• F/p-inj fuse 15a
• Ftp sens 5v ref
• Ftp sens low ref
• Ftp sens sig
• Fuel level sig
• Fuel pump
• Fuel pump & sender assembly
• Fuel pump ctrl
• Fuel pump relay (in underhood fuse block)
• Fuel tank pressure sensor (top of fuel tank)
• G110 (on left side of engine/ transmission)
• G304 (below left front seat)
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iat sens 5v ref
• Iat sens low ref
• Ignition
• Instrument panel cluster
• Intake air temperature sensor (on air cleaner outlet duct assembly)
• Malfunction indicator lamp
• Mil control
• Pcm fuse 10a
• Pnk
• Powertrain control module (right rear of engine compt)
• S126
• S171
• S214
• S330
• Solid state
• Speed sig
• Stop lamp switch (w/o cruise control)
• Tan
• Underhood fuse block (left front of engine compt)

2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002:

• (on left side of engine/ trans) g110
• (on left side of engine/ transmission) g110
• 1-2 shift sol
• 2-3 shift sol
• Automatic transaxle
• Automatic transaxle fluid pressure manual valve position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor
• Camshaft position sensor (right side of engine)
• Crankshaft position sensor (right
• Gnd
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Ign mdl fuse 20a
• Ignition coils
• Ignition control module (top rear of engine)
• Inter- connect
• P,r,n,d4,lo
• Pnk
• Pnk pnk
• Pressure control sol
• Red
• Release tcc
• Rev,d,2,1
• S171
• Side of engine)
• Tan
• Tcc pwm sol
• Transaxle range switch (top of transaxle)

2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002:

• 1-2 ss
• 2-3 ss
• Ckp sens low ref
• Ckp sens sig
• Cmp sens 12v ref
• Cmp sens low ref
• Cmp sens sig
• Cruise engage sig
• Ect sens low ref
• Ect sens sig
• Engine coolant temperature sensor (left front of engine)
• Erls fuse 10a
• Evap purge sol
• Evaporative emission canister purge solenoid (lower right side of engine)
• Fuel injectors
• G110 (on left side of engine/ transmission)
• Gen field duty sig
• Gen turn on sig
• Generator
• Heated oxygen sensor 1 (forward of catalytic converter)
• Heated oxygen sensor 2 (rearward of catalytic converter)
• Ho2s 1 high sig
• Ho2s 1 htr ctrl
• Ho2s 1 low sig
• Ho2s 2 high sig
• Ho2s 2 htr ctrl
• Ho2s 2 low sig
• Hot in run
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iac coil a high
• Iac coil a low
• Iac coil b high
• Iac coil b low
• Ic low ref
• Ic timing ctrl
• Idle air control valve (on throttle body assy)
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Iss high
• Iss low
• Knock sens
• Knock sensor (right rear of engine)
• Manifold absolute pressure sensor (side of throttle body)
• Map sens 5v ref
• Map sens low ref
• Map sens sig
• Nca
• O2 htr fuse 10a
• Oil press sig
• Oil pressure sensor (center rear of engine)
• Pc sol high
• Pc sol low
• Pcm ground
• Pnk
• Pnk pnk
• Powertrain control module (right rear of engine compt)
• Red
• S107
• S171
• Tan
• Tcc release sig
• Tcc sol
• Tfp sw a
• Tfp sw b
• Tfp sw c
• Tft sens sig
• Tft sesn low ref
• Throttle position sensor (on throttle body assy)
• Tp sens 5v ref
• Tp sens low ref
• Tp sens sig
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Vehicle speed sensor (on rear transaxle)
• Vss high
• Vss low

2.2L VIN F, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN F, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002:

• A/c clutch relay
• A/c press 5v ref
• A/c press low ref
• A/c press sens sig
• A/c refrigerant pressure sensor (right front corner of eng compt)
• A/c system
• A17
• A19
• B17
• B19
• Battery
• Bcm/clu fuse 10a
• Body control module
• Brake sw
• Class 2 serial data
• Computer data lines system
• Cool fan control
• Cooling fans system
• Cruise control module (right rear of engine compt)
• Cruise control release switch (w/ cruise control)
• Cruise control system
• Cruise inhibit sig
• Erls fuse 10a
• Evap vent sol
• Evaporative emission canister vent solenoid (under rear of vehicle)
• F/p-inj fuse 15a
• Ftp sens 5v ref
• Ftp sens low ref
• Ftp sens sig
• Fuel level sig
• Fuel pump
• Fuel pump & sender assembly
• Fuel pump ctrl
• Fuel pump relay (in underhood fuse block)
• Fuel tank pressure sensor (top of fuel tank)
• G110 (on left side of engine/ transmission)
• G304 (below left front seat)
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iat sens 5v ref
• Iat sens low ref
• Ignition
• Instrument panel cluster
• Intake air temperature sensor (on air cleaner outlet duct assembly)
• Malfunction indicator lamp
• Mil control
• Pcm fuse 10a
• Pnk
• Powertrain control module (right rear of engine compt)
• S121
• S171
• S214
• S330
• Solid state
• Speed sig
• Stop lamp switch (w/o cruise control)
• Tan
• Underhood fuse block (left front of engine compt)

2.2L VIN F, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN F, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002:

• (on left side of engine/ trans) g110
• (on left side of engine/ transmission) g110
• 1-2 shift sol
• 2-3 shift sol
• Automatic transaxle
• Automatic transaxle fluid pressure manual valve position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor
• Crankshaft position sensor (right
• Engine coolant temperature sensor (left front of engine)
• Gnd
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Ign mdl fuse 20a
• Ignition coils
• Ignition control module (top rear of engine)
• Inter- connect
• P,r,n,d4,lo
• Pnk
• Pressure control sol
• Red
• Release tcc
• Rev,d,2,1
• S171
• Side of engine)
• Tan
• Tcc pwm sol
• Transaxle range switch (top of transaxle)

2.2L VIN F, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.2L VIN F, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002:

• (on left side of engine/ transmission) g110
• 1-2 ss
• 2-3 ss
• Ckp sens low ref
• Ckp sens sig
• Cmp sens sig
• Cruise engage sig
• Ect sens low ref
• Ect sens sig
• Erls fuse 10a
• Evap purge sol
• Evaporative emission canister purge solenoid (lower right side of engine)
• Fuel injectors
• Gen field duty sig
• Gen turn on sig
• Generator
• Heated oxygen sensor 1 (forward of catalytic converter)
• Heated oxygen sensor 2 (rearward of catalytic converter)
• Ho2s 1 high sig
• Ho2s 1 htr ctrl
• Ho2s 1 low sig
• Ho2s 2 high sig
• Ho2s 2 htr ctrl
• Ho2s 2 low sig
• Hot in run
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Iac coil a high
• Iac coil a low
• Iac coil b high
• Iac coil b low
• Ic timing ctrl
• Idle air control valve (on throttle body assy)
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Iss high
• Iss low
• Knock sens low ref
• Knock sens sig
• Knock sensor (right rear of engine)
• Manifold absolute pressure sensor (side of throttle body)
• Map sens 5v ref
• Map sens low ref
• Map sens sig
• Nca
• O2 htr fuse 10a
• Oil press sig
• Oil pressure sensor (center rear of engine)
• Pc sol high
• Pc sol low
• Pcm ground
• Pnk
• Powertrain control module (right rear of engine compt)
• Red
• S107
• S126
• S171
• Tan
• Tcc release sig
• Tcc sol
• Tfp sw a
• Tfp sw b
• Tfp sw c
• Tft sens sig
• Tft sesn low ref
• Throttle position sensor (on throttle body assy)
• Tp sens 5v ref
• Tp sens low ref
• Tp sens sig
• Trs sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Vehicle speed sensor (on rear transaxle)
• Vss high
• Vss low

2.4L

2.4L VIN T, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2002:

• (behind left side of dash) body control module (bcm)
• (in underhood fuse block) fuel pump relay
• (left side of dash) data link connector
• (or pnk)
• A/c pres low ref
• A/c pres sig
• A/c refrigerant pressure sensor (right front of eng compt)
• A/t iss sens
• A17
• A19
• All times
• B17
• B19
• Bare
• Battery
• Class ii serial data
• Cmp sens sig
• Computer data lines system
• Cruise control brake switch
• Ect sens sig
• Eng speed sig
• Engine oil pressure switch (top rear of engine)
• F/p-inj fuse 15a
• Ftp low ref
• Ftp sens 5v ref
• Ftp sens sig
• Fuel pmp lvl
• Fuel pump
• Fuel tank module
• Fuel tank pressure sensor (top of fuel tank)
• G110 (on left side of engine/ transmission)
• G304 (below left front seat)
• Gen duty sig
• Gen on sig
• Generator
• Hot at
• Hot in run, bulb test or start
• I/p fuse block
• Ign
• Ign ctrl timing
• Ign mdl fuse 20a
• Inj 1
• Inj 2
• Knock sensor (ks) (right rear of eng)
• Ks low ref
• Ks signal
• Map sens sig
• Oil pres
• Park/neutral position switch
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pnk
• Powertrain control module (pcm) (right front of eng compt)
• Red
• S171
• S330
• Serial data
• Shield
• Stop lamp switch
• Tcc bk sw
• Tft sensor
• Throttle position (tp) sensor (on throttle body assy)
• Tp sens sig
• Tps sens low ref
• Tr sw a
• Tr sw input b
• Tr sw input c
• Tr sw input p
• Tx range a
• Tx range b
• Tx range c
• Underhood fuse block
• Vss high
• W/ cruise control
• W/o cruise control

2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2002:

• (engine harness, left front of engine)
• 1-2 shift solenoid valve
• 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 a
• C red
• Ckp low ref
• Ckp sig
• Crankshaft position sensor (left front of eng)
• Engine coolant temperature sensor (rear of engine)
• Fuel injectors
• Gnd
• Ic 1 ctrl
• Ic 2 ctrl
• Ic timing ctrl
• Ign
• Ignition coils
• Ignition control module (on top left of eng)
• Low ref
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• Ref sig
• S121
• Tan
• To spark plugs
• Torque converter clutch pwm solenoid valve
• Vehicle speed sensor (on transaxle)

2.4L VIN T, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2002:

• 1-2 ss valve
• 2-3 ss valve
• A/c clutch rly
• A/c press 5v ref
• A/c system
• Atf sens low ref
• Camshaft position sensor (top left of eng)
• Cmp sens 12v ref
• Cmp sens low ref
• Cool fan ctrl
• Cooling fans system
• Cruise control system
• Cruise diable
• Cruise engaged
• Ect sens low ref
• Erls fuse 10a
• Evap can purge
• Evap can vnt
• Evaporative emission canister purge valve (left front of eng)
• Evaporative emission canister vent solenoid (rear of vehicle)
• F pump rly
• G112 (left rear of engine)
• G115 (rear of engine)
• Hot in run
• Hot in run, bulb test or start
• I/p fuse block
• Iac coil a hi
• Iac coil a lo
• Iac coil b hi
• Iac coil b lo
• Iat sens 5v ref
• Iat sens low ref
• Icm low ref
• Idle air control valve (on throttle body assy)
• Ign
• Inj 3 driver
• Inj 4 driver
• Instrument panel cluster
• Intake air temperature sensor (on air cleaner outlet duct assy)
• Iss sens low ref
• Malfunction indicator lamp
• Manifold absolute pressure sensor (side of throttle body)
• Map sens 5v ref
• Map sens low ref
• 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 (rearward of catalytic converter)
• Powertrain control module (right front of eng compt)
• Pre conv o2
• Pre- converter oxygen sensor (on exhaust manifold)
• Red
• Red c
• S101
• S107
• S171
• S214
• Tan
• Tan b
• Tcc pwm sol
• Tcc release
• Tp sens 5v ref
• Vss low
• Vss out