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E-series JB4 cold start idle issues n55
28-02-2017, 05:21 PM (This post was last modified: 28-02-2017 05:22 PM by Rice.)
Post: #1
E-series JB4 cold start idle issues n55
I've recently installed ISO JB4(type B) and catless DP.
Since the installation of the jb4 I have been having idle issues.
The car starts up and idles perfect, but once i start to move forward or back the idle starts to hunt/pulse a few times before settling, the rest of my drive is fine with no hunting at all.

I have a eseries n55 dct model. I have tried to leave the stock maf sensor plugged in as mentioned in the jb4 install guide but that didnt seem to help.
Anyone have a solution for this or face similar issues?

Thanks,
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01-03-2017, 08:08 AM
Post: #2
RE: E-series JB4 cold start idle issues n55
Were the O2 sensors put back onto the correct downpipes?

Also check that all connectors are correctly seated into each other.

AKASH
Masstronix E90 335i AT Sportpack (JB4, DP, DCI. Race flash 265wkw @622NM at KAR)
E90 323i Sportpack
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