2000 Chevrolet Blazer Repair Question
Topics covered: Sensor, Catalytic converter, Exhaust.
Mileage: 141,000 miles.
Mileage: 141,000 miles.
Asked on January 16, 2012
The service engine light is on and I got four codes PO135, PO146, PO147, PO155. What do these codes mean and what do I need to do to get the service light to turn off so I can inspect it?
2000 chevy blazer 4.3.
Asked by cg02Answer
Replied on January 17, 2012
those are all O2 sensor circuits. see if the wires leading to them have been burnt from touching the exaust pipes.
Replied on January 17, 2012
Is the one of the 02 sensor circuits located behind the catalytic converter and is the other one by the exhaust manifold?
Replied on January 17, 2012
yes, one inf fornt and one in back of both converters. bank 1 is left side bank 2 right