Where is the oxygen sensor located on a 2003 Pontiac Vibe?
There are two o2 sensors one before the converter and one after. There is a TSB (technical service bulletin) on the vibe o2 sensor. Depending on your milage your car may be covered. The heated sensor (sensor 1) is on the exhaust behind the engine. Trouble codes would be P0171 and P2195 for the TSB/recall.