Car was running fine, was out riding around other night got on it few times. Next day when I cranked it it didn't want to start, when it did it was running rough. I have o2 meter hooked up to ECM, lately I noticed it wasn't running up and down mostly in the middle, it's been running lean. So I thought the o2 sensor was bad, replaced it tonight still doing same thing, I hooked up a monitor 4000, o2 readings aren't going up and down either. What do I try next?
car running rough
- Thread starter gsbuick65
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