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Just a thought, The HDI has a wippy s1 on it, but past 3k its quite smokey on full boost, & maintaining 15psi, so this is obviously unburnt fuel, so can i wind the boost up on the turbo a couple psi to compensate for the extra fuel?
Oh and before you ask, yes iv cleaned the air filter & its a K&N so guessing its not just because its being chocked on boost,
also decat straight through so no restrictions there
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You shouldn't have to turn it up on stage one, maybe maf is faulty? tried unplugging it?
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didnt come up on the fault code finder so im guessing not,
i no you shouldnt but if i can = winning
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I don't think it always creates a code, I'd just unplug it and see
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Quite possibly the MAF, they die faster with K&N filters as the filter oil hurts them.
You could turn the boost up a turn or 2 though but I'm not sure how much faster your likely to go.
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MAF yo. I had the same on S1 map these last few weeks. Substituted MAF and it's all kosher.
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K&ns eat mafs for fun, sack it off, they're no better anyway. Mafs dont usually throw a code when they die because they still stay within the parameters expected by the ecu.