Thread: Cylinder 3 misfire Tried everything I can think of

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  1. #11 Re: Cylinder 3 misfire Tried everything I can think of 
    GT Level Member Beelzeboul's Avatar
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    so replaced all my wires and the check engine light is no longer popping on still idling a little rough but got much better after idling for about 5-8 min while doing a pcm relearn due to the battery dieing. my idle LTFTs were around 9-10 ish fluctuating a little bit but never running over 10.4 is this a sign im running rich or is that normal for a parked prix idling? seemed a little high to me but not as bad as when I had a vacuum leak and it just pegged at 16.4 uploading a video of me making sure it was not a vacuum leak causing the rough idle and to give you guys a sound bite of what im dealing with
    1st video

    second video 5 min after 1st

    both were made after wire change to brand new acdelco LT warranty

    the noise in the back round is coming out of my intake assuming its my rotors dont know why its the most dominant sound on the video but the first cpl seconds of first video are me turning phone to the intake so you can hear it and try to block it out as you hear the idle

    gonna take it out for a drive a little later and see if the misfire kicks in after some higher rpms but seems to have completely dissipated just idling like I got a small vac leak now but my LTFTs arent pegged at 16.4 confirming it and the vac leak search via carb cleaner was completely inconclusive
    Last edited by Beelzeboul; 09-05-2012 at 04:21 PM.
    I'm sorry officer I didnt know I couldn't do that
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