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[blockquote]My 97 civic hbex is throwing code 65 which secondary o2 sensor heater. I tried to find the sec. o2 sensor from my car, but couldn't.I took out my whole engine harness, but still can't find it. Can anybody help?




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as far as i know bout o2 sensors, for obdII which is ur car.....there are two o2 sensors, one b4 the cat by ur headers around there, and then the second one on ur catalytic converter, check under the car, ur 'cat' should be under there!....