ENGINE PERFORMANCE – Buick Roadmaster Limited 1994 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

5.7L

5.7L (VIN P), Engine Performance Wiring Diagrams (1 of 3) for Buick Roadmaster Limited 1994

List of elements for 5.7L (VIN P), Engine Performance Wiring Diagrams (1 of 3) for Buick Roadmaster Limited 1994:

• high res
• (base of left "a" pillar, behind kick panel)
• (engine compartment, on front of left cylinder head)
• 5 volts ref
• A/c clutch status
• A/c compressor relay
• A/c request sig
• Air conditioning system
• Air pump relay ctrl
• Battery
• Coil
• Conn a
• Conn b
• Coolant fan relays
• Cruise control, speedo, radio, warning alarm & cent ctrl module
• Dist ignition feed
• Dist ref low sig
• Distributor
• Egr solenoid ctrl
• Eng oil level sensor sig
• Eng oil reset sw
• Engine oil change reset switch (next to i/p fuse)
• Engine oil level sensor (left side of engine oil pan)
• F/p fuse #2 15a
• Fuel enable sig
• Fuel inj fuse #6 10a
• Fuel inj fuse #9 10a
• Fuel injector #1
• Fuel injector #2
• Fuel injector #3
• Fuel injector #4
• Fuel injector #5
• Fuel injector #6
• Fuel injector #7
• Fuel injector #8
• Fuel pump relay ctrl
• G110
• G110 (engine compartment, on front of left cylinder head)
• G203
• Ground
• High resolution sig
• Hot at all times
• Hot in run or start
• Hot in run, bulb test or start
• Ign
• Ignition
• Ignition ctrl
• Inj #1 ctrl
• Inj #2 ctrl
• Inj #3 ctrl
• Inj #4 ctrl
• Inj #5 ctrl
• Inj #6 ctrl
• Inj #7 ctrl
• Inj #8 ctrl
• Instrument clusters system
• Interface circuit
• Low oil ind ctrl
• Low res
• Low resolution sig
• Maf sensor sig
• Mass air flow sensor (between air cleaner and intake resonator)
• Optical sensor
• Pcm ground
• Pnk
• Power steering pressure switch (in power steering line near power unit)
• Powertrain control module (forward of left wheelhouse, under air cleaner)
• Pri cool fan relay ctrl
• Psp switch in
• Red
• Ref low
• Sec cool fan relay ctrl
• Sensor ground
• Spark plugs
• Tcc temp switch (in trans oil cooler inlet pipe)
• Tcc temp switch sig
• Theft deterent module (attached to right "a" pillar, behind kick panel)
• Trans 1-2 shift ctrl
• Trans 2-3 shift ctrl
• Trans 3-2 shift ctrl
• Trans fuse #5 10a
• Under- hood electrical center
• Vehicle speed sensor (left rear of transmission)
• Vss ground
• Vss out
• Vss signal

5.7L (VIN P), Engine Performance Wiring Diagrams (2 of 3) for Buick Roadmaster Limited 1994

List of elements for 5.7L (VIN P), Engine Performance Wiring Diagrams (2 of 3) for Buick Roadmaster Limited 1994:

• Air fuse #3 20a
• Bank 1 h02s low
• Bank 1 ho2s hi
• Bank 2 ho2s hi
• Bank 2 ho2s low
• Brake switch sig
• Chime fuse #13 10a
• Conn c
• Cruise control release switch (attached to brake pedal bracket)
• D pnk
• Ect sensor sig
• Egr solenoid valve (top of engine behind inj #7)
• Emi fuse #4 10a
• Engine coolant temperature sensor (right front of engine)
• Evaporative emission canister purge solenoid valve (top of engine behind inj #4)
• G110 (engine compartment, on front of left cylinder head)
• Heated oxygen sensor 1 (bank 1, left exhaust manifold)
• Heated oxygen sensor 2 (bank 2, right exhaust manifold)
• Hot at all times
• Hot in run, bulb test or start
• Iac coil "a" hi
• Iac coil "a" low
• Iac coil "b" hi
• Iac coil "b" low
• Iat sensor sig
• Idle air control motor (right front of throttle body)
• Intake air temperature sensor (air cleaner assembly)
• Manifold absolute pressure sensor (front of engine compartment, next to thermostat housing)
• Map sensor sig
• Nca
• Pcm ground
• Pnk
• Pnp sig
• Powertrain control module (forward of left wheelhouse, under air cleaner)
• Red
• Secondary air injection (air) pump (lower right side of engine block)
• Secondary air injector (air) pump relay
• Tan
• Throttle position sensor (attached to right side throttle body) a
• Tp sensor sig
• Trans press ctrl sol hi
• Trans range sig "a"
• Trans range sig "b"
• Trans range sig "c"
• Under- hood electrical center

5.7L (VIN P), Engine Performance Wiring Diagrams (3 of 3) for Buick Roadmaster Limited 1994

List of elements for 5.7L (VIN P), Engine Performance Wiring Diagrams (3 of 3) for Buick Roadmaster Limited 1994:

• (attached to i/p carrier, right of steering column)
• (buick) (chevy)
• (engine compartment, on front of left cylinder head)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 3-2 ctrl solenoid (pwm)
• A/c clutch ctrl
• A/c compressor relay
• A/c press sensor sig
• A/c refrigerant pressure sensor (in hi pressure line above right wheelhouse)
• A6 b7
• A9 b2
• Automatic transmission
• C1 c2
• C2 c1
• Canister purge ctrl
• Change oil ind ctrl
• Coil driver
• Conn d
• Data link connector
• Fuel pump priming connector (near a/c accumulator)
• Fuel pump relay (attached to multi-use relay bracket, right rear engine compartment)
• Fuel pump/ level sender (in fuel tank)
• Fuel pump/ oil pressure switch (top of engine at rear)
• G110
• G110 (engine compartment, on front of left cylinder head)
• G203 (base of left "a" pillar, behind kick panel)
• G402 (left rear wheel- house, in engine compartment)
• Ground
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse #2 15a
• I/p indc fuse #11 10a
• Ign
• Ign ctrl
• Ignition
• Ignition coil (front of engine)
• Ignition coil module (front of engine)
• Instrument cluster
• Instrument cluster system
• Knock sensor sig
• Left knock sensor (left of engine block, below exhaust manifold)
• Malfunction indicator
• Mil ctrl
• Output/field serv enbl
• Park/neutral position switch (near base of steering column)
• Pcm ground
• Pnk
• Powertrain control module (forward of left wheelhouse, under air cleaner)
• Pressure control solenoid
• Red
• Right knock sensor (right of engine block, forward of starter)
• Serial data
• Sw a
• Sw b
• Sw c
• Tan
• Tan m
• Tcc solenoid
• Trans fluid temp sensor
• Trans fluid temp sig
• Trans fuse #5 10a
• Trans press ctrl low
• Trans tcc ctrl
• Under- hood electrical center