ENGINE PERFORMANCE – Chevrolet Astro 2000 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.3L

4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 2000

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 2000:

• (eng harn, 20 cm from vcm conn c2 breakout)
• (eng harn, 6.5 cm from knock sensor conn breakout)
• (engine harn, 26 cm from vcm conn c2 breakout)
• (on frame rail by fuel filter) evaporative emission canister vent valve
• (on left rear of throttle body) idle air control valve
• 1-2 shift sol ctrl
• 2-3 shift sol ctrl
• 3-2 ctrl sol ctrl
• Bank 1 heated oxygen sensor 1 (left front exhaust y-pipe)
• Bank 2 heated oxygen sensor 1 (right front exhaust y-pipe closest to exhaust manifold)
• Cam posit sens rtn
• Cam posit sens sig
• Camshaft position sensor (side of distributor)
• Crank posit sens sig
• Crankshaft position sensor (behind & to right of engine crankshaft pulley)
• Ect sens input
• Egr pintle pos
• Evap can vent valve
• G114 (left rear of engine block, next to knock sensor)
• G201 (right side of dash)
• Hall effect sensor
• Ho2s sens hi
• Ho2s sens lo
• Iat temp sens sig
• Idle air ctrl (iac) a hi
• Idle air ctrl (iac) b lo
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Knock sens sig
• Knock sensor (left rear of distributor on engine block)
• Map sens input
• Mass air flow sens
• Nca
• Pnk
• Pnk c
• S124
• S126
• S127
• S151
• S152
• Tan
• Tank vac sig
• Tcc pwm sol ctrl
• Tcc sol ctrl
• Throttle posit sens
• Trans temp sens sig
• Twisted wire pair
• Vehicle control module (vcm) (left side of engine compartment)
• Vehicle spd sense sig
• Vehicle speed sensor (rear of transmission)
• Vss rtn
• Vss signal

4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 2000

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 2000:

• (engine harn, 26.5 cm from vcm conn c1 breakout)
• 1-2 shift sol
• 2-3 shift sol
• 3-2 control sol
• Automatic transmission
• Automatic transmission fluid pressure manual valve position switch
• Bank 1 heated oxygen sensor 3 (exhaust pipe, between catalytic converter & muffler)
• D2 sw
• D3 sw
• D4 sw
• Ecm-1 fuse 20a
• Eng-1 fuse 20a
• Evaporative emission canister purge solenoid valve (top of engine, next to map sensor)
• Exhaust gas recirulation (egr) valve (top of engine, left of generator)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Hot in run or start
• Lo sw
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• Rev sw
• S116
• S119
• S123
• S153
• Tan
• Tcc pwm sol
• Tcc sol
• Transmission fluid temperature sensor
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 2000

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 2000:

• (eng harn, 6 cm from generator breakout)
• (eng harn, 6 cm from generator breakout, toward ign module breakout)
• (engine harn, 18 cm from intake air temp sensor)
• (left rear frame rail) g416
• (right side of dash) g201
• 12v in
• 87a
• B11
• Ecm-b f11
• Engine coolant temperature sensor (on side of linear egr valve solenoid)
• Fuel pump & sender (inside fuel tank)
• Fuel pump relay
• Fuse 20a
• G12
• G134 (thermostat housing)
• Gauge input oil pressure
• Gnd
• Hot at all times
• Hot in run or start
• Hot in run, bulb test or start
• I/p fuse block
• Input odometer speedometer &
• Instrument cluster
• Intake air temperature sensor (top of air intake duct)
• Maf sig
• Malfunction indicator lamp (mil)
• Manifold absolute pressure sensor (top of engine, near ignition coil)
• Mass airflow sensor (maf) (front of air intake duct)
• Oil pressure switch & sender (on top rear of engine)
• Pnk
• Radio batt fuse 19 10a
• Red
• S109
• S111
• S115
• S117
• S118
• S120
• S122 (eng harn, 12 cm from generator breakout)
• S260
• Tan
• Tan a
• Throttle position sensor (top of engine, left side of throttle body)
• Trans fuse 20 10a
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 2000

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 2000:

• (eng harn, 10 cm from foward lamps breakout)
• (eng harn, 4 cm from underhood fuse block breakout)
• (front of dash, 32 cm from lamp harn breakout) s130
• (i/p harn, 28 cm from cluster breakout)
• (thermostat housing) g134
• 5v ref voltage
• 5v return
• A/c relay ctrl
• A/c request (hi)
• A/c request (lo)
• A/c system
• Body control module
• Brake sw input
• Brake switch input
• C1 c
• C207
• Check eng lp out
• Compass & temperature display module
• Convenience center (left side of i/p fuse block, by kick panel)
• Cruise control module (center front of firewall, left of windshield wiper module)
• Cruise engaged
• Cruise engaged sig
• Data link connector (dlc-partial) (under left side of dash)
• Distributor (top rear of engine)
• Egr pos voltage
• Egr valve ctrl
• Electronic brake control module (left front side of frame, left of transmission)
• Est output sig
• Fuel level input
• Fuel pump rly ctrl
• Fused ign
• Fused ign (run)
• G114 (left rear of eng block next to knock sensor)
• Ground
• High voltage coil wire
• Ho2s sens lo
• Hot in run
• I/p fuse block
• Ign input
• Ign timing sig.
• Ignition coil (top of engine, behind generator)
• Ignition control module (top of engine, front of coil)
• Ignition feed
• L term gen monitoring
• M4 brake fuse 18 10a n3
• Nca
• Overhead console
• Park/ neutral position switch (left center of transmission)
• Pnk
• Pnk a
• Power b(+)
• Press ctrl sol hi
• Press ctrl sol lo
• Prndl a
• Prndl b
• Prndl c
• Prndl d
• Radio
• Red
• S112
• S114
• S117
• S218
• Serial data sig
• Sp261 (behind left side of dash)
• Spark plugs
• Starting/ charging system
• Tach. sig.
• Trans range a input
• Trans range b input
• Trans range c input
• Vehicle control module (vcm) (left side of engine compartment)
• Vss in
• Vss input
• Vss sig
• Vss signal