GMC Rally G2500 (1985-1995) Wiring diagram engine performance 4.3l (vin z)s, m/t

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (BEHIND LEFT SIDE OF SHIPPING PANEL) DIAGNOSIS TEST TP SIGNAL INJECTOR 1 CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ECM-CRNK FUSE ECT SIGNAL EGR CONTROL ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) ENGINE GROUND FUEL PUMP RELAY CTRL FUEL PUMP SIGNAL MAP SIGNAL FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IC BYPASS TP/ECT GROUND MAP GROUND IC SIGNAL VSS SIGNAL VSS TP REFERENCE IDLE AIR CONTROL ACTUATOR (TOP REAR OF ENGINE) INJ FUSE KNOCK SENSOR SIGNAL LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) MAP REFERENCE IGNITION FUSED BATTERY FEED ORG/ WIRE ORG/BLK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF SHIPPING PANEL) PPL PPL 3 4 PPL/WHT WIRE RED WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE BODY FUEL INJECTOR #1 (TOP OF THROTTLE BODY UNIT) THROTTLE BODY FUEL INJECTOR #2 (TOP OF THROTTLE BODY UNIT) THROTTLE POSITION SENSOR (TOP RIGHT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE YEL WIRE

ACCY ALT FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (TOP REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE EGR SOLENOID (TOP RIGHT SIDE OF ENGINE) ENGINE GROUND FUEL PUMP AND SENDER (IN FUEL TANK) FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE) FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY (LOWER LEFT SIDE OF SHIPPING PANEL) FUSE BLOCK GRY WIRE HEATED OXYGEN SENSOR (IN EXHAUST MANIFOLD) HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP OF ENGINE NEAR DISTRIBUTOR) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (RIGHT SIDE OF ENGINE) LOCK OFF LT BLU WIRE LT GRN/YEL WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR NCA WIRE ORG/ WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL 3 4 PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RUN WIRE TAN/BLK WIRE VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT WIRE