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Intermittent trouble codes

The O-2 sensor related codes stem from mixture problems at the sensor. Either the sensor is failing (you are due for one around 130k anyway) or you've got a lean/rich condition upstream. I assume that your ignition system (plugs/wires/cap/rotor) is in good condition. First look for vacuum leaks in the intake air system: holes, leaking gaskets, etc. Then check your fuel pressure regulator to see if it is leaking. Then change the oxygen sensor.






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New Intermittent trouble codes
posted by  Lawrence  on Sun Jul 6 06:33 CST 2003 >


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