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Locate & test O2 sensor, RPM sensor? 700 1989

posted by  someone claiming to be Ryan M. on  Fri Dec 8 07:17 CST 2000 [RELATED]

How can I locate and test these two sensors? I heard the rpm sensor is on the bell housing, and can probably find that. But I don't know where the O2 sensor is, and I don't know how to test either sensor. Car has socket 2 fault codes of 121 and 232, indicating bad AMM and/or running too rich or lean. AMM seems to work okay, but I'm not sure what else to do.

A couple of posters recommended that I check the rpm sensor and the o2 sensor. Symptoms are high idle, crappy mileage, occasional cut-out of power, like running out of gas.

Can anybody help?






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