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Join Date: Jul 2014
Location: Henderson, NV
Posts: 91
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86 930 backfiring

Just installed new inter-cooler and air filter. the idle is ruff and backfires when I shift at a high rpm, 4800, engine also seems to be running very rich. I'm new at this and not sure if its a vacuum leak or i need to make additional adjustments. Any help would be appreciated.

Old 09-17-2014, 12:43 PM
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Join Date: Apr 2008
Location: west palm beach fla
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Prob a torn o- ring on the up pipe ( from turbo to I/c) or on throttle body o- ring. Next time you order from our host pick up a few extras
Old 09-17-2014, 01:07 PM
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No O rings. hoses from turbo to IC and to throttle body. But I will double check. thanks for the info.
Old 09-17-2014, 03:37 PM
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Did you knock loose a spark plug wire or anything? Whenever I blow off one of my twin plugs wires it behaves similarly to yours.

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Old 09-18-2014, 05:38 AM
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