Thread: Bad stumble, but only on hard accelleration

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  1. #1 Bad stumble, but only on hard accelleration 
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    Hi all,
    This morning I decided to open her up, and discovered a pretty bad stumble. Recently replaced MAF, air filter, plugs, wires and most of the vacuum harness, to get rid of a miss under light acceleration. Thought I had that sorted, so I decided to play. I don't have my good scanner with me, so I don't know if it's the computer doing KR or what. Feels like the computer is pulling everything it can to protect something. I'm using 93 octane, and with the recent tune up I thought I had it sorted out. Any ideas?
    Thanks!
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  2. #2 Re: Bad stumble, but only on hard accelleration 
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    I should mention that it only happens under about 60%+ throttle. Maybe more...I'll have to use my cheap scanner and see...
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