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BMW 3-Series (E90 E92) Forum
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4th gear wot... Bam! Limp mode and codes
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| 06-16-2013, 05:21 PM | #1 |
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4th gear wot... Bam! Limp mode and codes
I posted this in another forum but would like more input so thanks
 I never seen these codes happen ever except first time I installed the jb4. I have 49k miles on my car and it's a 08 e90. I reset my map 5 And did a wot 4th gear, Normally I do 3rd gear but I was already on the highway. Was this a blip or should I have something to worry about. I cleared codes and did another wot and no limp and no codes
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| 06-16-2013, 06:12 PM | #2 |
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Logs?
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| 06-16-2013, 07:39 PM | #4 |
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The JB4 interface tells you the likely cause of those codes. Did you read the image you posted?
 If they stay off perhaps the JB4 has learned around them. If they come back I'd do a log and shoot it over to BMS for advice.Mike |
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| 06-16-2013, 08:23 PM | #5 | |
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Log sometime tomorrow night |
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| 06-17-2013, 07:50 PM | #6 |
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here is a log of 3rd gear and then 4th gear. 3rd gear, no codes, 4th gear pull, and bam....triggered all the same codes! please help...i never had this problem before, have been using jb4 for months upon months with no issues before.
btw the file i changed to .txt, just change it back to .csv to view, thanks for any help!
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| 06-17-2013, 08:51 PM | #7 | |
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Mike |
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| 06-18-2013, 02:07 AM | #8 |
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Just an update, fixed my problem with the codes. So with the new firmware I had my duty cycle set to "36" this gave me overboost which gave me great low throttle acceleration. I changed my duty cycle back to 26-28 and guess what.... No codes no limp mode on wot. And I never changed my OL from setting of "80" at first I tried 75, 70, 65 and 60
And still threw same codes and limo mode around 5k rpms.'idk why the change in setting with duty cycle resolved this, but it did by lowering it |
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