"Engine Malfunction" reduced speed .. Help.

Nice · 06-12-2011, 02:01 PM

So last night took my car to 140 plus on the pch, it was all good. Then engine malfunction came on .. reduced speed WTF i drove a little turned it off and on again, pushed it to 100 it was cool. I have jb3 and exhaust... 335 07

Thoughts please, i see alot of people talking about the hpfp is an issue is this what i should expect the it to be... so weird that it happened randomly and not again. Going to see if it happens again today.

Thanks homies!!

BMWsky · 06-12-2011, 03:33 PM

Did you check for codes? If not, every response will be pure speculation.

Nice · 06-12-2011, 03:47 PM

No not yet it happened last night, all the dealers are closed on sunday, one of my boys said that its a common problem when running a tune at high speeds and downshifting is when it happened. Were thinking its about time for a spark plug change or upgrade...

Thoughts on the best spark plug for 335i on a jb3 tune i think oem is best.. but anyone upgraded there sparks and noticed a difference or running better..

BMWsky · 06-12-2011, 03:50 PM

It probably isn't plug related, but it wouldn't hurt to get them changed. There's a chance a diverted valve was loose (happened to me under similar conditions), but now I'm just guessing.

Nice · 06-12-2011, 08:38 PM

so when i turned the car on it was bogging and then reved high, the engine error came up again, the car was running very loud in the engine bay. Drove it a little. turned it off/on went away and did not come back all day..

06-12-2011, 02:01 PM	#1
Nice cmds_Programming=life..! 2 Rep 44 Posts Drives: E90 Join Date: May 2011 Location: los angeles iTrader: (1)	"Engine Malfunction" reduced speed .. Help. So last night took my car to 140 plus on the pch, it was all good. Then engine malfunction came on .. reduced speed WTF i drove a little turned it off and on again, pushed it to 100 it was cool. I have jb3 and exhaust... 335 07 Thoughts please, i see alot of people talking about the hpfp is an issue is this what i should expect the it to be... so weird that it happened randomly and not again. Going to see if it happens again today. Thanks homies!!
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06-12-2011, 03:33 PM	#2
BMWsky Major 24 Rep 1,244 Posts Drives: 335i Join Date: Dec 2010 Location: Webster NY iTrader: (1)	Did you check for codes? If not, every response will be pure speculation.
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06-12-2011, 03:47 PM	#3
Nice cmds_Programming=life..! 2 Rep 44 Posts Drives: E90 Join Date: May 2011 Location: los angeles iTrader: (1)	No not yet it happened last night, all the dealers are closed on sunday, one of my boys said that its a common problem when running a tune at high speeds and downshifting is when it happened. Were thinking its about time for a spark plug change or upgrade... Thoughts on the best spark plug for 335i on a jb3 tune i think oem is best.. but anyone upgraded there sparks and noticed a difference or running better..
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06-12-2011, 03:50 PM	#4
BMWsky Major 24 Rep 1,244 Posts Drives: 335i Join Date: Dec 2010 Location: Webster NY iTrader: (1)	It probably isn't plug related, but it wouldn't hurt to get them changed. There's a chance a diverted valve was loose (happened to me under similar conditions), but now I'm just guessing.
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06-12-2011, 08:38 PM	#5
Nice cmds_Programming=life..! 2 Rep 44 Posts Drives: E90 Join Date: May 2011 Location: los angeles iTrader: (1)	so when i turned the car on it was bogging and then reved high, the engine error came up again, the car was running very loud in the engine bay. Drove it a little. turned it off/on went away and did not come back all day..
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