2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

wrong fuel pump cause bog?

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Old Jun 27, 2006 | 10:31 PM
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wrong fuel pump cause bog?

i have some serious boging issues in my s4 turbo II (s4 n/a rotors) no emissions cats idle control ect . brand new rebuild 35 miles on it and has been idling in the driveway for about 5 hours total. everytime I accelerate just slightly around 2.75-3k rpm , I begin to bog down as if its makin no power. the sound reminds me of a 1 rotor sart up where u can't get both going. this happens only for a moment because i let off imediatly ofcorse. but it happens in any gear. even more so the higher gear u r in. could this be caused by the face i havent yet switched the n/a fuel pump over with the t2 pump? i think there is a 10 psi diffrence. i decided not to swap it right away because i figured while not under boost for break in it would have sufficient fuel pressure. perhaps that was a mistake on my part to assume(probably). if thats not the reson for my boging does anyone els have any other ideas on why this would happen? n/a MAP in place of turbo MAP maybe?
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Old Sep 2, 2006 | 10:45 PM
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i found out it was my map sensor nevermind
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Old Sep 7, 2006 | 07:00 AM
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What the hell are you doing using NA rotors in a turbo engine with the stock ECU???


-Ted
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Old Sep 8, 2006 | 12:04 PM
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Originally Posted by RETed
What the hell are you doing using NA rotors in a turbo engine with the stock ECU???


-Ted

well if you really want to know.. I went to wal*mart umm got some school supplies drove around campus then arround town.. parked it so on so on. no really wtf? u act like im the only person who has done this for my aplication. n/a rotors arent no big thing when your seing stock psi.. 5.5. and im telling you this??

Last edited by R_PROWESS; Sep 8, 2006 at 12:18 PM.
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