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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Jb4!! Help please



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      03-02-2013, 08:06 PM   #1
Carlos335i
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Jb4!! Help please

Hey guys, I just installed my jb4 with a flex fuel system. The flex fuel was already on the chip but I ran out of time and diddent connect the fuel rail sensors. So I turn my car on and at map 0 (stock) it feels way noticibky slower than the normal stock. I ran a stock n55 and he blew by me. What can this be? The fuel sensors?
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      03-02-2013, 10:37 PM   #2
Sam335ix
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Run map 4 which is now the new stock map.
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      03-03-2013, 08:32 AM   #3
divisionbell77
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Quote:
Originally Posted by Sam335ix View Post
Run map 4 which is now the new stock map.
He didn't say if he was ISO or not.
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      03-04-2013, 10:00 PM   #4
Carlos335i
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Thanks guys , map 4 was the stock. I connected the flex fuel and did 60-40 on map 5 and wow she's a totally different car. It amazes me the power delivery :
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