ENGINE PERFORMANCE – Chevrolet Cavalier LS 2001 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.2L

2.2L CNG, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Cavalier LS 2001

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Cavalier LS 2001:

• (af eng harn, 32 cm from evap/ect breakout)
• (af harn) s150
• (behind left side of dash) body control module
• (dash harn, left front of dash)
• (in underhood fuse/relay center) fuel pump relay
• 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 oil pressure switch (near oil filter)
• Erls fuse 10a
• F/p-inj fuse 20a
• Fuel lvl ind
• 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
• Instr cluster system
• Instrument cluster system
• Knock sensor (right side of eng)
• Ks signal
• Low coolant sw
• Map sensor
• Ngo enable out
• Oil pres
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pcm/ign fuse 10a
• Pnk
• Powertrain control module (right front of eng compt)
• Red
• S019
• S107
• S171
• S214
• S242
• S330
• Sensoe grd
• Serial data
• 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
• Underhood fuse/relay center
• Vss high
• W/ cruise control
• W/o cruise control

2.2L CNG, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Cavalier LS 2001

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Cavalier LS 2001:

• (4 speed only)
• (af eng harn, 16.5 cm from iat sensor breakout)
• (af eng harn, aprrox 16 cm ect sensor breakout)
• (eng harn, 27 cm from bulkhead connector)
• 1-2
• 1-2 shift solenoid valve
• 2-3
• 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 ctrl
• Coil pos
• Crankshaft position sensor (right side of eng)
• Ctrl coil
• 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)
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• Ref low
• Ref sig
• S011
• S017
• S121
• Tan
• To spark plugs
• Torque converter clutch pwm solenoid valve
• Vehicle speed sensor (on transaxle)

2.2L CNG, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Cavalier LS 2001

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Cavalier LS 2001:

• (af eng harn, approx 19.5 cm from evap/ect breakout) s020
• (af eng harn, in cmp sensor breakout)
• (af harn)
• (af harn, appprox 60 cm from grommet below steering column)
• (af harn, approx 26.5 cm from af ecu breakout)
• (af harn, aprrox 6.5 cm from the four relay breakouts toward ecu)
• (af harn, near hpl solenoid)
• (af harn, near lpl solenoid)
• (behind left headlamp) af fuel pump relay
• (behind left headlamp) ignition relay
• (behind left headlamp) lock-off relay
• (left side of trunk compt) high pressure lock-off solenoid
• (pins 1-5 not used)
• (pins 10-20 not used)
• (rear of eng)
• (top front of eng) low pressure lock-off solenoid
• 1x cam sens
• 5v ref
• 7x crank sens
• 87a
• Actual gas flow
• Af d1
• Af d2
• Af d3
• Af ecu bat
• Af ecu gnd
• Af ecu ign 0
• Af ecu ign 1
• Alter- native fuel engine control unit (behind left head- lamp)
• C001
• C002
• Cng fuse 20a
• Cooling fan/cng fuse 40a
• Desired gas flow
• Ect sens sig
• Evap can purge
• Evap canister
• Fps 5v ref
• Fps sig
• Fps/fts sens gnd
• Fts sig
• Fuel gage rly
• Fuel gage select
• Fuel ind cntl
• Fuel lvl out
• Fuel pmp rly
• G115
• Gas mass sensor (gms) (top center of eng)
• Gnd
• Harn)
• 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
• Instrument cluster system
• Lpl sol
• Map
• Mil
• Mil ctrl
• Mixture control valve motor (top center of eng)
• Motor gnd
• Motor pwr
• Nca
• Ngo enable
• O2s hi sig
• O2s lo sig
• Pnk
• Produc- tion use only
• Red
• S001
• S002
• S003 (af harn)
• S004
• S005
• S006
• S007
• S008
• S009
• S010
• S028
• S029 (af nca
• S450
• S451
• Sens gnd
• Serial data
• Serial data (cl 2)
• Sw ign pwr
• Tan
• Tps sig
• Underhood fuse/relay center
• Vehicle speed

2.2L CNG, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Cavalier LS 2001

List of elements for 2.2L CNG, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Cavalier LS 2001:

• (af eng harn, approx 15 cm from iat sensor)
• (af eng harn, approx 23 cm from iat sensor breakout)
• (af eng harn, approx 26 cm from evap/ect breakout)
• (af eng harn, approx 29.5 cm from iat sensor breakout)
• (af eng harn, approx 6.5 cm from evap/ect breakout)
• (af eng harn, front of eng) s121
• (af eng harn, near iac valve)
• (af harn)
• (eng harn, approx 24.5 cm from eng compt fuse/ relay center)
• (left side of trunk) fuel pressure sensor
• (left side of trunk) fuel temperature sensor
• 1-2 ss valve
• 2-3 ss valve
• A/ pres +5v
• A/c clutch rly
• A/c system
• A/t iss sens
• 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 (lower right side of eng)
• Evaporative emission canister vent solenoid (under rear of vehicle)
• Fuel 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
• 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 (rearward catalytic converter)
• Powertrain control module (right front of eng compt)
• Pre conv o2
• Pre- converter oxygen sensor (on exhaust manifold)
• Red
• Red a
• S013
• S014
• S015
• S016
• S018
• S021
• S024
• S025
• S026
• S027
• S101
• S107
• S171
• S214
• S452
• 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

2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2001

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2001:

• (2000)
• (2001)
• (behind left side of dash) body control module
• (dash harn, left front of dash)
• (in underhood fuse/relay center) fuel pump relay
• 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
• Class ii
• 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 oil pressure switch (near oil filter)
• F/p-inj fuse 20a
• Fuel lvl input
• 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 run, bulb
• Hot in run, bulb test or start
• Ign
• Ign ctrl a
• Ign ctrl b
• Ign ign mdl fuse 20a
• Inj 1
• Inj 2
• Knock sensor (right side of eng)
• Ks signal
• Low coolant sw
• Map sensor
• Oil pres
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pcm/ign pcm fuse 10a
• Pnk
• Powertrain control module (right front of eng compt)
• Red
• S171
• S242
• S330
• Sense ground
• Serial data
• Tcc bk sw
• Test or start
• 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
• Underhood fuse/relay center
• Vss high
• W/ cruise control
• W/o cruise control

2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2001

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2001:

• (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
• 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 assembly (on transaxle)

2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2001

List of elements for 2.2L VIN 4, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2001:

• 1-2 ss valve
• 2-3 ss valve
• A/ pres +5v
• A/c clutch rly
• A/c system
• A/t iss sens
• Automatic transaxle (3 speed only)
• Camshaft position sensor (right side of eng)
• Cmp sens b+
• Cmp sens gnd
• Cooling fans system
• Cruise control module (right side of eng compt)
• Cruise control system
• Cruise diable
• Cruise engaged
• Ect sens
• Erls fuse 10a
• Evap can vnt
• Evap canp
• Evaporative emission canister purge valve (lower right side of engine)
• Evaporative emission canister vent solenoid (under rear of vehicle)
• 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
• Idle air control valve (on throttle body assembly)
• Ign
• Inj 3 driver
• Inj 4 driver
• Instrument cluster
• 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 (rearward catalytic converter)
• Powertrain control module (right front of eng compt)
• Pre conv o2
• Pre- converter oxygen sensor (on exhaust manifold)
• Red
• Red a
• Ref lo
• S101
• S107
• S114
• 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 Chevrolet Cavalier LS 2001

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Cavalier LS 2001:

• (behind left side of dash) body control module
• (dash harn, left front of i/p)
• (in underhood fuse/ relay center) fuel pump relay
• 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
• Class ii serial data
• Cmp sens
• Computer data lines system
• Cruise control brake switch (brake pedal support)
• Data link connector (left side of dash)
• Drain
• Ect sensor
• Engine oil pressure switch (top rear of engine)
• F/p-inj fuse 15a
• Fuel pmp lvl
• 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
• Ground
• Hot at
• 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
• Map sensor
• Oil pres
• Park/neutral position switch
• Pcm fuse 10a
• Pcm gnd
• Pcm ground
• Pnk
• Powertrain control module (right front of eng compt)
• Red
• S171
• S242
• S330
• Sense grd
• Serial data
• 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
• Tx range a
• Tx range b
• Tx range c
• Underhood fuse/relay center
• Vss high
• W/ cruise control
• W/o cruise control

2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2001

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Cavalier LS 2001:

• (engine harness, left front of engine)
• 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 a
• 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
• 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 2001

List of elements for 2.4L VIN T, Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Cavalier LS 2001:

• 1-2 ss valve
• 2-3 ss valve
• 5v ref
• A/c clutch rly
• A/c system
• A/t iss sens
• 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
• Erls fuse 10a
• Evap can vnt
• Evap canp
• Evaporative emission canister purge valve (left front of eng)
• Evaporative emission canister vent solenoid (rear of vehicle)
• F pump rly
• Fuse block
• G115 (rear of engine)
• 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
• 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 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 (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
• Sensor grd
• Tan
• Tan b
• Tcc pwm sol
• Tcc release
• Vss low
• Vss out