Re:Re:RE: P0300
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I was never able to determine what the initial problem was, but I know I got the false misfires to quit with a soft reset. Disconnect the battery cables, short them together with a test light, leave them for half and hour and come back to it. I bet the code and misfire counts will be gone
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Tyler wrote: Actually, I've seen this before. :lol: On the same engine. I was able to watch the misfire counts tell me there were dead misfires when I could feel the engine run perfectly.
I was never able to determine what the initial problem was, but I know I got the false misfires to quit with a soft reset. Disconnect the battery cables, short them together with a test light, leave them for half and hour and come back to it. I bet the code and misfire counts will be gone
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" We're trying to plug a hole in the universe, what are you doing ?. "
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Now we're getting somewhere! I was thinking that this has to be a software problem if he can't feel any misses but it's logging like crazy . Wonder why there's no software update for this ECM it sounds like it has affected more than 1 of these vehiclesTyler wrote: Actually, I've seen this before. :lol: On the same engine. I was able to watch the misfire counts tell me there were dead misfires when I could feel the engine run perfectly.
I was never able to determine what the initial problem was, but I know I got the false misfires to quit with a soft reset. Disconnect the battery cables, short them together with a test light, leave them for half and hour and come back to it. I bet the code and misfire counts will be gone
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Ben wrote:
Now we're getting somewhere! I was thinking that this has to be a software problem if he can't feel any misses but it's logging like crazy . Wonder why there's no software update for this ECM it sounds like it has affected more than 1 of these vehiclesTyler wrote: Actually, I've seen this before. :lol: On the same engine. I was able to watch the misfire counts tell me there were dead misfires when I could feel the engine run perfectly.
I was never able to determine what the initial problem was, but I know I got the false misfires to quit with a soft reset. Disconnect the battery cables, short them together with a test light, leave them for half and hour and come back to it. I bet the code and misfire counts will be gone
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I wondered the same thing! I searched and searched for some kind of history on this problem, never could find one. I ended up letting mine go after the soft reset.
I wondered about a shifted flex plate, but the cam/crank waveforms were perfect. Best theory I have is the misfire detection monitor getting confused somehow, and ends up tricking itself.
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Any other updates from you guys on this?? Thank you!
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