Help Diagnosing

335i PPK · 07-27-2016, 12:44 PM

mods: mhd stage 1 tune, vrsf charge pipe with hks bov.

while doing a WOT engine goes into limp mode and i get the 1/2 engine on display, pulled over turned the car off and right back on and code was gone and car was driving fine again. After I got home a flashed the car back to stock which is PPK and went out for a drive and once i did a WOT car went into limp mode again, turned it off and back on and car went back to normal. Any ideas what could be causing the problem???

Andrewah05 · 07-27-2016, 03:05 PM

Check the vaccum lines for the turbos looks like you might have a boost leak might have blown one off one of the lines. Next check your charge pipe going WOT may have caused something to break loose that wasn't tightened properly etc. As for the fuel pump code could just be from the mhd flasher, my cobb throws it all the time as a shadow code, any other driveability issues?

NoSlow5oh · 07-27-2016, 04:15 PM

First thing I would do is make a log next time you go WOT and post it up.

07-27-2016, 12:44 PM	#1
335i PPK New Member 6 Rep 15 Posts Drives: e90 335i, m package, PPK Join Date: Sep 2015 Location: South Florida iTrader: (0)	Help Diagnosing mods: mhd stage 1 tune, vrsf charge pipe with hks bov. while doing a WOT engine goes into limp mode and i get the 1/2 engine on display, pulled over turned the car off and right back on and code was gone and car was driving fine again. After I got home a flashed the car back to stock which is PPK and went out for a drive and once i did a WOT car went into limp mode again, turned it off and back on and car went back to normal. Any ideas what could be causing the problem??? Attached Images Last edited by 335i PPK; 07-27-2016 at 12:45 PM.. Reason: attach pic
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07-27-2016, 03:05 PM	#2
Andrewah05 Captain 70 Rep 628 Posts Drives: 335i TiAg Join Date: Sep 2012 Location: Toronto, Canada iTrader: (0)	Check the vaccum lines for the turbos looks like you might have a boost leak might have blown one off one of the lines. Next check your charge pipe going WOT may have caused something to break loose that wasn't tightened properly etc. As for the fuel pump code could just be from the mhd flasher, my cobb throws it all the time as a shadow code, any other driveability issues?
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07-27-2016, 04:15 PM	#3
NoSlow5oh First Lieutenant 56 Rep 318 Posts Drives: 08 e90 335i Join Date: Jul 2015 Location: Madison, AL iTrader: (2)	First thing I would do is make a log next time you go WOT and post it up.
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