Loud backfire at end of a pull ?

Quick335XI · 07-09-2023, 11:08 AM

Anyone have a loud backfire letting out of the gas at the end of a pull, esp in fourth gear? Is it in ur new fuel or what? No codes

oVeRdOsE. · 07-09-2023, 01:02 PM

Quote:

Originally Posted by Quick335XI

Anyone have a loud backfire letting out of the gas at the end of a pull, esp in fourth gear? Is it in ur new fuel or what? No codes

need more info on that. log maybe or video or ghost code?

For how long you have the car?

My tuned audi do this and my N55 stock with OEM exhaust valve always open do this too, and it's more savage than my tuned audi.

tisdrew · 07-24-2023, 10:01 AM

This is a question for your tuner. They may be running rich at the higher rpm so the unburnt fuel mixture is causing said backfire. This is a configurable setting in MHD also to leave the injectors spraying off-throttle for a cycle or two while cutting ignition to give the kids "pops and bangs" tunes.

lookalikehuuh · 07-25-2023, 08:56 PM

got a video clip of the backfire?

07-09-2023, 11:08 AM	#1
Quick335XI First Lieutenant 123 Rep 338 Posts Drives: 2010 335xi Join Date: Dec 2017 Location: Dallas iTrader: (0)	Loud backfire at end of a pull ? Anyone have a loud backfire letting out of the gas at the end of a pull, esp in fourth gear? Is it in ur new fuel or what? No codes __________________ 2010 335XI, Carillo Steel rods, JE pistons, Closed Deck, Stage 4 race heads, 6mt, Pure Stage 2 High Flows, B58 Coils, VRSF\|Vu Brothers (Ft Worth, TX)\|JSRTuning, https://youtube.com/channel/UC_kL3RvFSGv9QmTVt6787gg
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07-24-2023, 10:01 AM	#3
tisdrew First Lieutenant 98 Rep 300 Posts Drives: 2009 335i Join Date: Dec 2015 Location: Melbourne, FL iTrader: (0)	This is a question for your tuner. They may be running rich at the higher rpm so the unburnt fuel mixture is causing said backfire. This is a configurable setting in MHD also to leave the injectors spraying off-throttle for a cycle or two while cutting ignition to give the kids "pops and bangs" tunes. __________________ "Wheels and exhaust aren't a build"
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07-25-2023, 08:56 PM	#4
lookalikehuuh Lieutenant Colonel 1092 Rep 1,596 Posts Drives: 2006 330i, 2007 335i Join Date: Sep 2014 Location: San Diego, CA iTrader: (0)	got a video clip of the backfire?
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