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Engine Sputteres then loud Bang sound? WTF?

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  #1  
Old 02-19-2007, 05:01 PM
sirfalconx's Avatar
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Default Engine Sputteres then loud Bang sound? WTF?

So last night Im coming off a long, sweeping off ramp, and decided to floor it, about 6 seconds later the motor practically died, the car started sputtering and lurching. The boost was going up and down rapidly. This happened before, a few weeks ago, flooring it up a hill, but this time I heard a loud *** Bang from under the car... The car was fine, didnt smell anything, and the car seems perfect today, drove it an hour and a half so far w/no probs... WTF???

Anyone got a clue what happened? I wonder if i have a loose hose and the boost was escaping then the extra fuel blew up in the cat?? Maybe my plugs are dirty? I dont want it to keep happening so any help is appreciated. Thanks!
 
  #2  
Old 02-19-2007, 05:04 PM
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Default RE: Engine Sputteres then loud Bang sound? WTF?

Misfired, engine ran rich, dumped gas into the exhaust and your enginebackfired.
 
  #3  
Old 02-19-2007, 05:18 PM
sirfalconx's Avatar
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Default RE: Engine Sputteres then loud Bang sound? WTF?

Cool, thanks David999. Ive started to notice some oil on/in my intake hose too, so I think my turbos starting to go...Thats why I was freaking out when It happened, I thought the impeller blew apart and I was fucked.

I need to get my adjustable FPR soon to stop the rich cndition... Dont want to keep doing that **** to the motor...
 
  #4  
Old 02-19-2007, 06:45 PM
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Default RE: Engine Sputteres then loud Bang sound? WTF?

+1 on the backfire... might want to vag your car to see if anything came up.
 
  #5  
Old 02-19-2007, 06:49 PM
sirfalconx's Avatar
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Default RE: Engine Sputteres then loud Bang sound? WTF?

Still gotta buy VAG, waiting on tax return lol
 
  #6  
Old 02-19-2007, 07:48 PM
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Default RE: Engine Sputteres then loud Bang sound? WTF?

ORIGINAL: david9999

Misfired, engine ran rich, dumped gas into the exhaust and your enginebackfired.
+1 and with your mod list im not suprised.. Those injectors are probably too big with stock turbo while using a k04 file, not to mention the bov.
 
  #7  
Old 02-20-2007, 02:31 AM
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Default RE: Engine Sputteres then loud Bang sound? WTF?

im surprised your car hasnt blown up with that setup your running
 
  #8  
Old 02-20-2007, 04:40 PM
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Default RE: Engine Sputteres then loud Bang sound? WTF?

check your plugs (color)and plug wires, might give a sign as to the problem...

SMo'
 
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