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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 > Not hitting boost target. MHD log help



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      Today, 01:05 AM   #23
bL79
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Drives: E84 X1 35 /// E36 M3 (RIP)
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Been a busy few weekend and had some tire issues but can turn my attention back to the boost leak. Also hoping I got my leaky compressor fixed to actually run the leak test.

@montegoblu - as I understand it the rule of thumb is a pull from 3k to 6k in 3rd gear and then a little bit into 4th. DSC should be off. This is probably best if you can swing it. The shorter gears arent as ideal.

You need to record more channels in MHD, you only have a handful. From the looks of it seems like you have a boost leak like me. Can you hear any whistling when driving? I can sometimes. Though as this thread shows replacing wg solenoid vacuum system did help me some. ymmv etc
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