2003 GMC Sonoma Repair Question
Topics covered: Sensor, Catalytic converter, Exhaust.
Mileage: 18,900 miles.
Mileage: 18,900 miles.
Asked on June 30, 2012
Where is bank 2 sensor 1?
Getting codes P0174 and P0155 on my 2003 GMC Sonoma 4.3 L, 2wd. Already replaced MAF, Dist (leak), fuel filter, Injectors (erroded and leak) and both upstream O2 sensors. Found gas cap loose 50+ miles after reading codes. Help?
Asked by LarryW60Answer
Replied on June 30, 2012
Where is bank 2 sensor 1? See below
Heated Oxygen Sensor (Bank 1 Sensor 1) (4.3L VIN W)In left exhaust pipe, in front of catalytic converter.
Heated Oxygen Sensor (Bank 1 Sensor 2) (2.2L VIN 5)In exhaust system, after catalytic converter.
Heated Oxygen Sensor (Bank 2 Sensor 1) (4.3L VIN W)In right exhaust pipe, in front of catalytic converter.
Heated Oxygen Sensor (Bank 1 Sensor 2) (4.3L VIN W)In exhaust system, after catalytic converter
