Thread: dct with jb4
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      01-10-2013, 12:03 AM   #1
BullowM3
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dct with jb4

Who here has a 335is with the jb4 chip. Any problems? I have noticed the downshifting there is about a second lag before the engine kicks in. And i have also had several misfires when attempting to floor it. About 40% of the time it downshifts and i floor it the accelerations choppy and the car wont accelerate because its misfiring and i throw an SES. Please note this car has 5000 miles on it so i highly doubt its because i need new spark plugs or coil pack. Any advice or help would be appreciated
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