ENGINE PERFORMANCE – Chevrolet Monte Carlo Z34 1998 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.1L

3.1L (VIN M), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.1L (VIN M), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Monte Carlo Z34 1998:

• (eng harn, on right side of eng compt, 15 cm from pcm breakout)
• (lower left front of eng)
• (pin 10-12 not used)
• (pin 21-27 not used)
• (pin 39-42 not used)
• (pin 49-52 not used)
• (pin 61-63 not used)
• 1-2 ss valve control
• 2-3 ss valve control
• 3x ref high
• 3x ref low (ground)
• Anti-theft system
• Bypass control
• Camshaft position sensor (front of eng, below intake plenum)
• Charge ind control
• Ckp sensor signal
• Cmp signal
• Cooling fan system
• Crankshaft position sensor (24x) (at end of crankshaft behind harmonic balancer)
• Crankshaft position sensor (7x) (lower right side of eng)
• Cruise control system
• Cruise disable output
• Data link connector (below dash, right of steering column)
• Ecm bat fuse 20a
• Ecm ign fuse 15a
• Egr val control (gnd)
• Eleck ign fuse 15a
• Engine wiring harness junction block 1 (forward of right strut tower)
• Evap purge val drviver
• F/injn fuse 15a
• Fuel inj #1 driver
• Fuel inj #2 driver
• Fuel inj #3 driver
• Fuel inj #5 driver
• Fuel inj #6 driver
• Fuel level level ctrl
• Fuse 10a
• Fuse 5a
• Fuse block (on behind right side of dash)
• G110
• High speed fans control
• Hos1 low
• Hos2 low
• Hot at all times
• Hot coolant ind control
• Hot in off, run bulb test, or start
• Hot in run, bulb test or start
• Iac coil b high
• Iat sensor ground
• Ic control
• Ignition control module (top right side of eng)
• Ignition wake up power
• Instrument cluster system
• Knock sensor (lower left side of eng block, above starter)
• Knock sensor signal
• Low speed fans control
• Maf sensor signal
• Nca
• Pcm ground
• Pnk
• Pnk b
• Power (battery)
• Powertrain control module (on right side of eng compt, forward of strut tower)
• S102
• S106
• S142
• S146
• S155
• S156
• S237
• Serial data (class 2)
• Serial data (uart)
• Spark plugs
• Starting/ charging system
• Tan
• Tcc brake switch input
• Theft deter fuel enable
• Tr switch input b
• Vss high
• Vss low
• Vss output

3.1L (VIN M), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.1L (VIN M), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Monte Carlo Z34 1998:

• (lower left front of eng)
• Evaporative emissions canister purge solenoid valve (on top right of eng, on intake plenum)
• Evaporative emissions canister vent solenoid valve (behind left side of rear fascia splash shield, behind wheelwell)
• Fuel injectors
• G110
• Pnk
• S106
• S109
• Stop lamp switch (on brake pedal support c2 bracket)
• Tan
• Transaxle range switch (top of transaxle)
• Vehicle speed sensor (on right rear of eng compt, end of transaxle)

3.1L (VIN M), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.1L (VIN M), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Monte Carlo Z34 1998:

• (eng harn, above ignition control module, 2 cm from ignition control module c2 breakout)
• (eng harn, below eng coolant fans, 13 cm from eng coolant fan 2 breakout)
• (eng harn, below intake plenum, 2 cm from pcm breakout)
• (eng harn, on right side of eng compt, 15 cm from pcm breakout)
• (fuel harn, below rear of vehicle)
• (in center of eng oil pan) engine oil level sensor
• (on air intake, on rear of eng) mass air flow sensor
• (on throttle body assembly) idle air control (iac) valve
• A/c refrigerant pressure sensor (on left front of eng compt, on a/c line)
• C10
• Engine coolant temperature (ect) sensor (near coolant outlet, left rear of eng)
• Exhaust gas recirculation valve (top rear of eng)
• Fuel tank pressure sensor (in fuel tank)
• G110 (lower left front of eng)
• Instrument cluster
• Intake air temperature (iat) sensor (in air cleaner canister)
• Malfunction indicator lamp
• Manifold absolute pressure sensor (on top of eng, on intake plenum)
• Pnk
• Red
• S106
• S107
• S121
• S122
• S167
• S425
• Tan
• Throttle position sensor (on throttle body assembly)

3.1L (VIN M), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.1L (VIN M), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Monte Carlo Z34 1998:

• (at base of left "b" pillar)
• (lower left front of eng)
• (pin 12-15 not used)
• (pin 19-21 not used)
• (pin 29-32 not used)
• (pin 45-48 not used)
• (pin 51-54 not used)
• (pin 62-65 not used)
• (pin 74-77 not used)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 5v ref a
• A/c compress clutch rly
• A/c refrig press signal
• A/c request signal
• Air conditioning system
• Auto transaxle fluid temperature sensor
• Change oil soon ind
• Cmp/ckp sensor batt (+)
• Cmp/ckp sensor ground
• Cruise control system
• Cruise engaged input
• Ecm bat fuse 20a
• Ect sensor signal
• Egr pintle position signal
• Egr val ign positive volt
• Eng oil level ind in
• Engine wiring harness junction block 1 (forward of right front strut tower)
• Evap can vent sol driver
• Fuel inj #4 driver
• Fuel level sensor
• Fuel level sensor input
• Fuel pump
• Fuel pump relay
• Fuel pump relay control
• Fuel tank
• Fuel tank press signal
• Fuse 10a
• Fuse block (on right side of dash)
• G110
• G110 (lower left front of eng)
• G308
• Gen terminal l output
• Heated oxygen sensor (ho2s) 1 (in exhaust manifold, right side of eng)
• Heated oxygen sensor (ho2s) 2 (in exhaust system, behind catalytic converter)
• Ho2s 1 signal
• Ho2s 2 signal
• Hot at all times
• Hot in run, bulb test or start
• Hot in run, bulb test, or start
• Iac coil a high
• Iac coil a low
• Iac coil b low
• Iat sensor signal
• Instrument cluster system
• Low oil level ind control
• Map sensor signal
• Mil control
• Nca
• Pnk
• Pnk e
• Powertrain control module (on right side of eng compt, forward of strut tower)
• Red
• S102
• S105
• S106
• S209
• S305
• Starting/ charging system
• Tach control
• Tan
• Tcc pwm sol val control
• Tcc pwm solenoid
• Tcc solenoid
• Tcc valve control
• Tft sensor signal
• Tp sens or signal
• Tr switch input a
• Tr switch input c
• Tr switch input d
• Trans fuse 10a
• Transaxle

3.8L

3.8L (VIN K), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Monte Carlo Z34 1998:

• (i/p harn, below i/p compt, 5 cm from blower motor relay breakout)
• (ign harn, top of eng, near ign control module)
• (lower left front of eng)
• (pin 10-14 not used)
• (pin 23-27 not used)
• (pin 39-42 not used)
• (pin 49-52 not used)
• (pin 66-67 not used)
• 1-2 ss valve control
• 18x ref signal
• 2-3 ss valve control
• 3x ref high
• 3x ref low (ground)
• Anti-theft system
• At/iss sensor high
• At/iss sensor low
• Bank 1 knock sensor (lower left side of eng block, above starter)
• Bank 2 knock sensor (lower right side of eng block, below exhaust manifold)
• Bypass control
• Camshaft position sensor (on front of eng, above right side of crankshaft
• Charge ind control
• Cmp signal
• Cooling fans system
• Crankshaft position sensor (at end of crankshaft, behind harmonic balancer)
• Cruise control system
• Cruise disable output
• Data link connector (below dash, right of steering column)
• Ecm bat fuse 20a
• Ecm ign fuse 15a
• Egr val control (gnd)
• Eleck ign fuse 15a
• Engine wiring harness junction block 1 (forward of right strut tower)
• Evap purge val drviver
• F/injn fuse 15a
• Fuel inj 1 driver
• Fuel inj 2 driver
• Fuel inj 4 driver
• Fuel inj 5 driver
• Fuel inj 6 driver
• Fuel level level ctrl
• Fuse 10a
• Fuse 5a
• Fuse block (on right side of dash)
• G110
• High speed fans control
• Hos1 low
• Hos2 low
• Hot at all times
• Hot coolant ind control
• Hot in off, run bulb test, or start
• Hot in run, bulb test or start
• Iac coil b high
• Iat sensor ground
• Ic control
• Ignition control module (top left front of eng)
• Ignition wake up power
• Instrument cluster system
• Knock sensor signal
• Low speed fans control
• Maf sensor signal
• Pcm ground
• Pnk
• Pnk p
• Power (battery)
• Powertrain control module (on right side of eng compt, forward of strut tower)
• Pulley)
• S102
• S106
• S142
• S144
• S145
• S156
• S237
• Serial data (class 2)
• Serial data (uart)
• Spark plugs
• Starting/ charging system
• Tan
• Tcc brake switch input
• Theft deter fuel enable
• Tr switch input b
• Trans fluid press sw a
• Vss high
• Vss low
• Vss output

3.8L (VIN K), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Monte Carlo Z34 1998:

• (lower left front of eng)
• Evaporative emissions canister purge solenoid valve (on top left side near center of valve cover)
• Evaporative emissions canister vent solenoid valve (behind left side of rear fascia splash shield, behind wheelwell)
• Fuel injectors
• G110
• Pnk
• S106
• S109
• Stop lamp switch (on brake pedal support c2 bracket)
• Tan
• Transaxle range switch (top of transaxle)
• Vehicle speed sensor (on right rear of eng compt, end of transaxle)

3.8L (VIN K), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Monte Carlo Z34 1998:

• (eng harn, 7 cm from 2-pin conn of right cooling fan breakout)
• (eng harn, below left side of radiator, 15 cm from egr valve)
• (eng harn, left side of eng, near throttle body, 4 cm from maf sensor
• (eng harn, right side of radiator, 20 cm from eng wiring harn junction block breakout)
• (fuel harn, 43 cm from 6-pin conn above fuel tank)
• (in exhaust manifold, right side of eng compt) heated oxygen sensor (ho2s) no1
• (in exhaust system, behind catalytic converter) heated oxygen sensor (ho2s) no2
• (in left side of eng oil pan) engine oil level sensor
• (lower left front of eng)
• (on air intake, on rear of eng) mass air flow sensor
• (on throttle body assembly) idle air control (iac) valve
• A tan
• A/c refrigerant pressure sensor (on left front of eng compt, on a/c line)
• Breakout) s107
• C pnk
• D pnk
• Engine coolant temperature (ect) sensor (near coolant outlet, left rear of eng)
• Exhaust gas recirculation valve (top rear of eng)
• Fuel tank pressure sensor (in fuel tank)
• G110
• G110 (lower left front of eng)
• Intake air temperature (iat) sensor (in air cleaner canister)
• Manifold absolute pressure sensor (on top of eng, on intake plenum)
• Nca
• Pnk
• Red
• S105
• S106
• S121
• S122
• S167
• S425
• Tan
• Throttle position sensor (on throttle body assembly)

3.8L (VIN K), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Monte Carlo Z34 1998

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Monte Carlo Z34 1998:

• (at base of left "b" pillar)
• (lower left front of eng)
• (pin 12-15 not used)
• (pin 19-21 not used)
• (pin 30-32 not used)
• (pin 47-48 not used)
• (pin 51-54 not used)
• (pin 62 not used)
• (pin 64-65 not used)
• (pin 70-77 not used)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 5v ref a
• A/c compress clutch rly
• A/c refrig press signal
• A/c request signal
• A/t iss solenoid
• Air conditioning system
• Auto transaxle fluid temperature sensor
• Automatic transaxle fluid pressure manual valve position switch
• C10
• Change oil soon ind
• Cruise control system
• Cruise engaged input
• Ecm bat fuse 20a
• Ect sensor signal
• Egr pintle position signal
• Egr val ign positive volt
• Eng oil level ind in
• Engine wiring harness junction block 1 (forward of right front strut tower)
• Evap can vent sol driver
• Fuel inj 3 driver
• Fuel level sensor
• Fuel level sensor input
• Fuel pump
• Fuel pump relay
• Fuel pump relay control
• Fuel tank
• Fuel tank press signal
• Fuse 10a
• Fuse block (on right side of dash)
• G110
• G308
• Gen terminal f monitor
• Gen terminal l output
• Ho2s 1 signal
• Ho2s 2 signal
• Hot at all times
• Hot in run, bulb test or start
• Hot in run, bulb test, or start
• Iac coil a high
• Iac coil a low
• Iac coil b low
• Iat sensor signal
• Instrument cluster
• Instrument cluster system
• Low oil level ind control
• Malfunction indicator lamp
• Map sensor signal
• Mil control
• Pc solenoid valve high
• Pc solenoid valve low
• Pnk
• Powertrain control module (on right side of eng compt, forward of strut tower)
• Ps solenoid
• Red
• S102
• S106
• S209
• S305
• Starting/ charging system
• Tach control
• Tan
• Tcc pwm sol val control
• Tcc release switch input
• Tcc solenoid
• Tft sensor signal
• Tp sens or signal
• Tr switch input a
• Tr switch input c
• Tr switch input d
• Trans fluid press sw b
• Trans fluid press sw c
• Trans fuse 10a
• Transaxle