GMC Vandura P3500 (1985-1997) Wiring diagram engine performance 4.3l (vin w)s, commercial chassis

1 2 PNK WIRE 1-2 SHIFT SOL CTRL TCC PWM SOL CTRL 3 4 5 6 PNK PNK PNK WIRE A/C CMP CLTCH RLY OUT EGR POSIT INPUT BLK LT GRN/ WIRE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAM POSIT SENS RTN CAMSHAFT POSITION (CMP) SENSOR (IN DISTRIBUTOR) DK BLU WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE EVAP CAN PURGE CTRL FEED IGN FUEL INJ NO.1 CTRL 2-3 SHIFT SOL CTRL GRY WIRE HALL EFFECT SENSOR HEATED OXYGEN SENSOR IDLE AIR CONTROL (IAC) VALVE (LEFT SIDE OF AIR INTAKE SYSTEM) KNOCK SENS SIG KNOCK SENSOR (KS) (REAR OF ENGINE, TOP CENTER) LT BLU/ BLK WIRE LT BLU/ WHT WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WHT/ WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SENSOR INPUT IAT SENS SIG ECT SENSOR INPUT THROTTLE POSITION SENS NCA WIRE PNK 7 8 9 10 WIRE PNK WIRE PNK/BLK WIRE PPL PPL CKP SENS RTN VSS RTN VSS SIG PPL/WHT WIRE PRE-CONVERTOR (LEFT EXHAUST PIPE AHEAD OF CATALYTIC CONVERTER) RETURN SENSOR CKP SENS GND SIGNAL SENSOR CKP SYSTEM GROUND TAN WIRE TAN/WHT WIRE VEHICLE CONTROL MODULE (VCM) (VCM BRACKET BOLTED TO LEFT RADIATOR SUPPORT) VEHICLE SPEED SENSOR (VSS) (LEFT REAR OF TRANSMISSION, NEAR CENTER) WHL SPD SIG, LEFT FRT CAM POSIT SENS SIG POWER FUEL INJ NO.6 CTRL WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 PNK WIRE 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3 4 5 6 PNK PNK PNK WIRE AUTOMATIC TRANSMISSION (A/T) (IF EQUIPPED) (REAR OF ENGINE) BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE ECM I FUSE ENG 1 FUSE FUEL INJECTOR NO.2 FUEL INJECTOR NO.1 FUEL INJECTOR NO.3 FUEL INJECTOR NO.4 FUEL INJECTOR NO.5 FUEL INJECTOR NO.6 GRY WIRE HEATED OXYGEN HEATED OXYGEN SENSOR HOT IN (ON) RUN, START (CRANK) I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK 7 8 9 10 WIRE PNK PNK PNK 2 3 4 5 WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POST CONVERTOR (EXHAUST PIPE BEHIND CATALYTIC CONVERTER) PPL PPL/WHT WIRE PRE-CONVERTOR (RIGHT EXHAUST PIPE AHEAD OF CATALYTIC CONVERTER) PRESSURE CONTROL SOLENOID (PCS) RED WIRE RED/BLK WIRE TAN WIRE TAN/WHT WIRE TCC PWM SOLENOID TRANS FUSE TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR (INTERNAL) TRANSMISSION RANGE (TR) PRESSURE SWITCH ASSEMBLY W/ A/T ONLY WHT WIRE YEL WIRE YEL/BLK WIRE

A/C COMPRESSOR HIGH PRESSURE CUT-OFF SWITCH (REAR OF A/C COMPRESSOR) A/T BLK WIRE BREAKOUT) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG-BAT FUSE FROM ECT SENSOR BREAKOUT) FROM TPS BREAKOUT) FUEL GAUGE FUEL PUMP SWITCH, ENGINE OIL PRESSURE GAUGE SENSOR (TOP LEFT REAR OF ENGINE) FUEL SENDER, FUEL PUMP (TOP OF FUEL TANK) GAUGES FUSE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN (ON) RUN, START (CRANK) I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE M/T MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (INTAKE MANIFOLD, REAR CENTER) MAP REF LO MASS AIR FLOW SENSOR (MAF) (AIR INTAKE SYSTEM BETWEEN AIR CLEANER, ENGINE) NCA WIRE OIL PRESS GAUGE ORG/ WIRE PNK PNK 2 3 4 5 6 7 8 9 WIRE PNK PNK PNK 2 3 4 5 WIRE PNK PNK WIRE PNK WIRE PPL RED WIRE RED/BLK WIRE REF LO TEMP REF THROTTLE POSITION (TP) SENSOR (INTAKE SYSTEM, LEFT SIDE) SENSOR BREAKOUT) SERVICE ENGINE SOON INDICATOR SPEEDO- METER TAN WIRE WHT WIRE YEL WIRE

389 419 VSS OUTPUT MIL CTRL 420 1807 PPL PPL BRAKE SIG SERIAL DATA 900 900 SERVICE CIRCUIT POWER SERVICE CIRCUIT POWER A/C REQUEST SIG A/T A/T INPUT SPEED SENSOR (TRANSMISSION, LEFT FRONT) ANTI-LOCK BRAKE SYSTEM BLK RED/ WIRE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (LEFT SIDE OF BRAKE PEDAL BRACKET) CLUTCH SIG CYLINDER NO.2 CYLINDER NO.1 CYLINDER NO.5 CYLINDER NO.3 CYLINDER NO.4 CYLINDER NO.6 DISTRIBUTOR (TOP REAR OF ENGINE) DK BLU WIRE DK BLU/ WHT WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE FEED IGNITION FUEL PUMP PRIME CONNECTOR (TAPED TO FUEL PUMP RELAY BREAKOUT) FUEL PUMP RELAY (ENGINE BULKHEAD RELAY BRACKET UNDER BATTERY JUNCTION BLOCK) GROMMET TOWARD IGNITION SW) GROUND GRY WIRE HIGH VOLTAGE COIL WIRE HOT AT ALL TIMES HOT IN ON, RUN I-3 FUSE I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) IGN FEED IGN FEED RANGE SIG "B" RANGE SIG "A" IGNITION COIL (BRACKET AT TOP EDGE OF RIGHT CYLINDER HEAD) LT BLU/WHT WIRE M/T M/T ONLY ORG/ WIRE PCS SOL (HI) INPUT SPD SENS SIG INPUT SPD SENS RTN TIMING CTRL SIG PCS SOL (LO) SYSTEM GROUND PNK IGN FEED WIRE PNK PNK 2 3 4 5 6 7 8 9 10 11 12 13 14 WIRE PNK WIRE PPL PPL PPL RANGE SIG "C" RED WIRE RED/BLK WIRE RETURN CONTROL TIMING SHIFT INTERLOCK SYSTEM SIGNAL CONTROL TIMING SPARK PLUGS VEHICLE CONTROL MODULE (VCM) (VCM BRACKET BOLTED TO LEFT RADIATOR SUPPORT) WHT WIRE WHT/BLK WIRE