CEL problem - fixed problem but still tripping!
#1
CEL problem - fixed problem but still tripping!
Got the 0509 code (Front Left 02 sensor) after installing a y-pipe like 6 months ago. Reset the ECU a few times and it would stay off for a while then come back. Finally went and bought a new O2 sensor (Bosche) and replaced the bad one (front left bank, which is the one closest to the front of the car). Reset the ECU, everything seemed fine. Now 3 days later the CEL trips again with the same damn code! Doesnt seem like I'm getting bad gas mileage or having any misfire issues...any ideas!?
shaz
shaz
#4
CEL light has been on for a week, I didnt reset it. I got my normal mileage for a tank of gas...around 365 miles, so it seems like the O2 sensor is working fine. Anyone think maybe the ECU is messed up, or the CEL itself??
shaz
shaz
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