ENGINE PERFORMANCE – Chevrolet Astro 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.3L

4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 2002

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 2002:

• (behind and to the right of pulley) crankshaft position sensor
• (under left side of dash) data link connector
• +5v
• 3-2 ss
• Body control module (above radio)
• Brk sw
• Ckp
• Cls 2 data
• Cmp
• Ecm-b fuse 20a
• Ecm-i fuse 20a
• Ect sig
• G105 (in thermostat housing)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Injectors
• Ks sig
• Low ref
• Nca
• Pnk
• Pnk b
• Pnk d
• Pnk e
• Pnk h
• Pnk j
• Pnk l
• Powertrain control module (on left side of firewall)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• S109
• S116
• S123
• S155
• Sens gnd
• Sp261 (behind data link connector)
• Tan
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 2002

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 2002:

• (center of dash)
• (engine harn, 6 cm from generator breakout)
• (engine harn, 6 cm from vss breakout)
• (not used)
• Eng-1 fuse 20a
• Engine coolant temperature sensor (on side of cylinder head)
• Fuel pump and sender assembly (in fuel tank)
• Fuel pump relay
• G104
• G104 (center of dash)
• G105 (in thermostat housing)
• G106 (left rear of engine)
• G302 (on the left rear side of frame
• Heated oxygen sensor (bank 1 sensor 1) (left front exhaust y-pipe)
• Heated oxygen sensor (bank 1 sensor 2) (on exh, between converter & muffler)
• Heated oxygen sensor (bank 2 sensor 1) (right front exhaust y-pipe near manifold)
• Hot in run & start
• Knock sensor (left rear of distributor)
• Nca
• Park/neutral position switch (left center of transmission)
• Pnk
• Red
• S117
• S119
• S124
• S126
• S127
• S154
• S262
• Tan
• Throttle position sensor (left side of throttle body)
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 2002

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 2002:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A red
• A/t fluid pressure manual valve position switch
• Air temperature sensor (top of air intake duct)
• Automatic transaxle
• B red
• Brake fuse 18 10a
• Camshaft position sensor (on side of distributor)
• Evaporative canister purge solenoid (top of engine, near map sensor)
• Evaporative canister vent valve (underside of vehicle, near fuel filter)
• Fuel tank pressure sensor (in fuel tank)
• G105 (in thermostat housing)
• G106 (left rear of engine)
• Gnd
• Hot in off run & start
• Hot in run
• I/p fuse block
• Ign
• Intake
• Manifold absolute pressure sensor (top of engine, near ign coil)
• Mass airflow sensor (front of air intake duct)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk c
• Red
• Red/
• Rev
• S112 (engine harn 15 cm from fuse block breakout)
• S115
• S117
• S127
• Signal
• Stop- light switch (above brake pedal)
• Tan
• Tan b
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Trans fuse 20 10a
• Vehicle speed sensor (rear of transmission)

4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 2002

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 2002:

• 1-2 ss
• 2-3 ss
• A/c clu
• A/c req
• A/c system
• Anti-lock brake system (speed signal)
• Coil driver
• Coil wire
• Cruise control system
• Cruise control system (speed signal)
• Cruise eng
• Cyc sw in
• Distributor
• Evap canp
• Evap vent
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• G105 (in thermostat housing)
• G107 (left rear of engine)
• Gen f
• Gen l
• Gnd
• Hot at all times
• I/p fuse block
• Iac coil hi
• Iac coil lo
• Iat sig
• Ic timing ctrl
• Idle air control valve (left rear of throttle body)
• Ign
• Ign feed
• Ignition coil
• Ignition control module (top of engine) front of coil)
• Instrument panel cluster
• Logic
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk a
• Powertrain control module (left side of firewall)
• Prnd c
• Radio batt fuse 19 10a
• Recirc door
• Recirc sw
• Red
• S117
• S155
• Sens gnd
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Timing
• Tp sig
• Trans rng a
• Vss high
• Vss low
• Vss out