I have a 2000 vw jetta with a 2.0 and the check engine light had been on for a while-like a year. Once I got it fixed, it had 8 codes, some saying it was running lean, on saying bad o2 sensor, one saying bad air/fuel ratio, 3 cylinder misfires, etc. Well I replaced the o2 sensor and it fixed it for like 1500 miles, then the other day, the light came back on. Checked it and it had 2 cylinder misfires. Could the car running lean for a long time have messed up the spark plugs and they need changing? Let me know. Thanks
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Friday, April 13th, 2007 AT 8:49 AM