I just bought an O2 sensor for my 2001 Blazer with 111,000 miles (4.3 L engine) after getting it serviced. I have no clue where to put it. The servicer said it was Bank 1 Sensor 2, and absolutely NO ONE can give me a certain answer as to where that is. I was hoping maybe there was some sort of diagram to show where the O2 sensor is, because someone told me it was after the catalytic converter on the driver's side, but I have only found one O2 sensor after the converter, and it is on the passenger side. The service code was " P0141 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)". I really want to get this fixed, because Service Engine Soon lights really piss me off!
Wednesday, January 31st, 2007 AT 5:53 PM