oldeng |
06-23-2009 08:33 AM |
I'm a Protege guy, but this will help. Locate your exhaust manifold; it will have a heat shield with a caution hot label on it, Follow its run from the engine toward the exhaust and you'll find a hole or cutout of some kind in it with a thing that looks like a spark plug with a crimped connector on it. That's the upstream O2 sensor. (Going further toward the exhaust, the bulge is the catalytic converter, downstream of which is another O2 sensor. This sensor is the one which drives the check engine light).
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