JB4 WOT Misfire

GmoBmw · 01-29-2012, 12:46 AM

So I Installed my JB4 Today and Everytime Im in map 1 and I WOT my Car misfire after I hit about 4,000 RPM. My Service Engine light comes on and i have to stop and restart the car. Map 0 Works fine but not Map 1. Im guessing its my Spark Plugs and or coils since when i check the code it states that its a misfire in Cylinder #2. Anyone Have any other thoughts?

bigdnno98 · 01-29-2012, 07:11 AM

Prob plugs. How many miles on them. Change them and see if it continues. If it does move the coil from the misfire and see if it follows. If it does replace coil. If it doesn't prob injector or hpfp.

chili36 · 01-29-2012, 06:09 PM

Read this...
http://www.e90post.com/forums/showthread.php?t=631829

GmoBmw · 02-03-2012, 05:23 PM

Changed Spark Plugs and Fixed the Issue ^_^. Thanks all.

rexsevn · 02-03-2012, 05:31 PM

How much were the spark plugs?

MR.Slick1029 · 02-03-2012, 05:43 PM

Quote:

Originally Posted by rexsevn

How much were the spark plugs?

you could find them anywhere from $80-150 . Check getbmwparts.com

335iJWC · 02-03-2012, 11:16 PM

Quote:

Originally Posted by rexsevn

How much were the spark plugs?

since your in SoCal i got mine from Thomas BMW in camarillo

like $13 EACH

GmoBmw · 02-04-2012, 12:46 AM

69 bucks from BMS

01-29-2012, 12:46 AM	#1
GmoBmw Captain 34 Rep 645 Posts Drives: 2007 335i Join Date: Dec 2011 Location: California iTrader: (8)	JB4 WOT Misfire So I Installed my JB4 Today and Everytime Im in map 1 and I WOT my Car misfire after I hit about 4,000 RPM. My Service Engine light comes on and i have to stop and restart the car. Map 0 Works fine but not Map 1. Im guessing its my Spark Plugs and or coils since when i check the code it states that its a misfire in Cylinder #2. Anyone Have any other thoughts? __________________ 2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
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01-29-2012, 06:09 PM	#3
chili36 Lieutenant 6 Rep 461 Posts Drives: 335i Join Date: Dec 2007 Location: So.Cal iTrader: (1)	Read this... http://www.e90post.com/forums/showthread.php?t=631829
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02-03-2012, 05:23 PM	#4
GmoBmw Captain 34 Rep 645 Posts Drives: 2007 335i Join Date: Dec 2011 Location: California iTrader: (8)	Changed Spark Plugs and Fixed the Issue ^_^. Thanks all. __________________ 2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
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02-03-2012, 05:31 PM	#5
rexsevn Private 8 Rep 75 Posts Drives: 335i Join Date: May 2011 Location: SoCal iTrader: (0)	How much were the spark plugs?
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02-04-2012, 12:46 AM	#8
GmoBmw Captain 34 Rep 645 Posts Drives: 2007 335i Join Date: Dec 2011 Location: California iTrader: (8)	69 bucks from BMS __________________ 2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
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01-29-2012, 07:11 AM	#2
bigdnno98 Real Car Enthusiast 288 Rep 2,082 Posts Drives: 340xi Join Date: Jul 2011 Location: Germany iTrader: (8)	Prob plugs. How many miles on them. Change them and see if it continues. If it does move the coil from the misfire and see if it follows. If it does replace coil. If it doesn't prob injector or hpfp.
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