How many o2 sensors does a 2002 Pontiac sun fire gt have%3F

carguy1101
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Asked by carguy1101 Jan 18, 2013 at 08:59 AM about the 2002 Pontiac Sunfire GT

Question type: Maintenance & Repair

1 Answer

Tom Demyan
141,435

There should be 2 O2 sensors. The first one is on the engine side of the Catalytic converter that is the upstream O2 sensor and the second one primarily comes after the catalytic converter down the exhaust pipe.

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