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Car Acting Funny Help Would Be Appreciated

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Old Jun 12, 2006, 03:25 PM
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Car Acting Funny Help Would Be Appreciated

My friend has a 2004 VIII he just put on a new forge wastegate, bigger injectors, walbro fuel pump, evo VIII european exhaust manifold, white rabbit turbo upgrade. when he builds up to about the 1.5 bar the car seems like it is backfiring, or the BOV is sputtering. And it threw a random misfire code. Any Info that anyone would be able to provide would be appreciated thank you
Old Jun 12, 2006, 03:30 PM
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Plugs, coilpacks, and wires fixed a similar backfire on mine. But that is a random fix without knowing your problem in better detail.
Old Jun 12, 2006, 03:32 PM
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Is it tuned? If not, it needs to be tuned ASAP.

If it is tuned, did you put in new plugs? You should try a set of BPR7ES or BPR8ES (both are copper) gapped to .026 and see if that helps at all in case your current ones have gone bad or just aren't good enough for the new setup.
Old Jun 12, 2006, 03:39 PM
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ok thanks i was thinking th coils might be starting to go bad myself but just thought id see what anyone else had to say thanks
Old Jun 12, 2006, 03:44 PM
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Teh fuel cut much?
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