GMC Envoy II (2001-2009) bank 1 sensor 1 (in left bank of exhaust pipe, Wiring diagram

19 20 21 PNK WIRE 6 7 PNK WIRE AHEAD OF CATALYTIC CONVERTER) BANK 1 SENSOR 1 (IN LEFT BANK OF EXHAUST PIPE, BANK 1 SENSOR 2 (IN LEFT BANK OF EXHAUST PIPE, BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE OIL PRESSURE (EOP) SENSOR (AT REAR OF ENGINE) GRY WIRE HEATED OXYGEN IGN IGNITION COILS KNOCK SENSOR (KS) 1 (LOWER LEFT SIDE OF ENGINE) KNOCK SENSOR (KS) 2 (RIGHT SIDE OF ENGINE BLOCK) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE NCA WIRE PNK 16 17 18 WIRE PNK PNK 8 9 WIRE PNK PNK PNK 1 2 3 4 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 1 2 3 4 5 6 7 8 9 PPL 12 13 14 15 PPL/WHT WIRE RED WIRE REF LO SPARK PLUG TAN WIRE TAN/WHT WIRE THROTTLE BODY (FRONT OF INTAKE DUCT) YEL WIRE YEL/BLK (OR WIRE