Jb4 issue!

HoustonRed · 01-02-2012, 05:04 PM

Hi everyone,
I installed jb4 today morning, everything felt great until later when I went WOT on freeway, the engine started shivering, Ses lit up and it remained that way. I exited , thought It needs time to get used to and went on to delete codes and start driving again, softly.
I went wot again on a ramp, the same issue popped again. It shakes and throws Ses light when ever I go wot. All this in map 1.

So shifted to map 0 , all\'s fine.

Tried the map 1 again with same results at wot ( Ses and engine shake)

I checked the codes

29f3 and 29ce popped up!

Some one help me! Mine is still under CPO warranty.

Jeff@TopGearSolutions · 01-02-2012, 05:07 PM

Quote:

Originally Posted by HoustonRed

Hi everyone,
I installed jb4 today morning, everything felt great until later when I went WOT on freeway, the engine started shivering, Ses lit up and it remained that way. I exited , thought It needs time to get used to and went on to delete codes and start driving again, softly.
I went wot again on a ramp, the same issue popped again. It shakes and throws Ses light when ever I go wot. All this in map 1.

So shifted to map 0 , all\'s fine.

Tried the map 1 again with same results at wot ( Ses and engine shake)

I checked the codes

29f3 and 29ce popped up!

Some one help me! Mine is still under CPO warranty.

How old are your spark plugs?

HoustonRed · 01-02-2012, 05:09 PM

Actually I am not sure! Got it CPO last sept. I have not changed them since.

HoustonRed · 01-02-2012, 05:10 PM

Sept 2010 I meant*

Jeff@TopGearSolutions · 01-02-2012, 05:12 PM

You have a few options to fix your problem.

First and foremost re upload your firmware.

Either swap your coilpack 2 to 3. See if problem goes away.

And OR/ get new sparkplugs. They should be changed ever 25K.

Your one code was something fuel related but its probably nothing. The other was misfire cylinder 2.

9/10 people on used vehicles need to replace sparkplugs before a tune. In fact it should be mandatory with the amount of threads and problems.

HoustonRed · 01-02-2012, 05:18 PM

I do not have the USB cable with me to do anything about the firmware. But I can change my spark plugs and see how it goes!

01-02-2012, 05:04 PM	#1
HoustonRed Enlisted Member 5 Rep 44 Posts Drives: 2007 e90 335i Join Date: Jul 2011 Location: Houston iTrader: (0)	Jb4 issue! Hi everyone, I installed jb4 today morning, everything felt great until later when I went WOT on freeway, the engine started shivering, Ses lit up and it remained that way. I exited , thought It needs time to get used to and went on to delete codes and start driving again, softly. I went wot again on a ramp, the same issue popped again. It shakes and throws Ses light when ever I go wot. All this in map 1. So shifted to map 0 , all\'s fine. Tried the map 1 again with same results at wot ( Ses and engine shake) I checked the codes 29f3 and 29ce popped up! Some one help me! Mine is still under CPO warranty.
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01-02-2012, 05:09 PM	#3
HoustonRed Enlisted Member 5 Rep 44 Posts Drives: 2007 e90 335i Join Date: Jul 2011 Location: Houston iTrader: (0)	Actually I am not sure! Got it CPO last sept. I have not changed them since.
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01-02-2012, 05:10 PM	#4
HoustonRed Enlisted Member 5 Rep 44 Posts Drives: 2007 e90 335i Join Date: Jul 2011 Location: Houston iTrader: (0)	Sept 2010 I meant*
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01-02-2012, 05:12 PM	#5
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	You have a few options to fix your problem. First and foremost re upload your firmware. Either swap your coilpack 2 to 3. See if problem goes away. And OR/ get new sparkplugs. They should be changed ever 25K. Your one code was something fuel related but its probably nothing. The other was misfire cylinder 2. 9/10 people on used vehicles need to replace sparkplugs before a tune. In fact it should be mandatory with the amount of threads and problems.
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01-02-2012, 05:18 PM	#6
HoustonRed Enlisted Member 5 Rep 44 Posts Drives: 2007 e90 335i Join Date: Jul 2011 Location: Houston iTrader: (0)	I do not have the USB cable with me to do anything about the firmware. But I can change my spark plugs and see how it goes!
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