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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > HELP!!



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      10-14-2013, 11:30 AM   #1
DVaystub
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HELP!!

Hey guys,
Have yet to pull codes, but I thought someone might be able to help!
Just recently installed JB4 G5 ISO running map5 with 45% e85 55% 91 octane. FlexFuel Wires of course. Started having this problem, When Im in a high gear at a lower speed, ie: 6th gear 45-50 mph and I give it WOT, the car will boost and pull hard, but then pop and go into Limp-home mode. Tons of codes and lights. And when I pull over and restart the car, JB4 clears the codes and Im good to go again.
I know the first thing is to check the codes, but if you guys have any ideas, Please let me know! Thanks!!

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      10-14-2013, 12:05 PM   #2
sA x sKy
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You or anyone else for that matter can't really help you unless you read the codes buddy..
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      10-14-2013, 01:00 PM   #3
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it happen to me also, but im using cobb, when i reached 180-200 km/h , the code pop up also and the car still pull hard, the cobb said that dme didnt recieve some boost target, recomend to tight the couplers, already tight all the couplers, but not test the car again at the same speed
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      11-21-2013, 01:14 PM   #4
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Hey guys, The code is "36c9"
Thanks for any ideas!!
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      11-21-2013, 02:43 PM   #5
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did you read that through the JB4 interface?
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      11-21-2013, 02:44 PM   #6
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Quote:
Originally Posted by big_gtr View Post
it happen to me also, but im using cobb, when i reached 180-200 km/h , the code pop up also and the car still pull hard, the cobb said that dme didnt recieve some boost target, recomend to tight the couplers, already tight all the couplers, but not test the car again at the same speed
codes?
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      11-21-2013, 02:44 PM   #7
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Just as an FYI you really shouldn't be doing WOT runs at low RPM in high gears in turbocharged cars (e.g. what OP stated originally; 45-50mph in 6th gear). This builds up too much boost/load/temperatures and is just not good for the components. See here: http://www.e90post.com/forums/showthread.php?t=858228

I'd say if you have the reported issues at WOT in any gear, you have a legitimate issue but if it's just WOT for the described conditions, then no.
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      11-21-2013, 02:48 PM   #8
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I think you should check to see if your charge pipe is still in tact. Check for cracks, if it's loose, or if you have an aftermarket one, check to see its still on tight. If that doesn't help, then you need to turn off auto clear and collect the codes. Also if possible, do a log and send it in to terry.
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      11-21-2013, 08:51 PM   #9
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Quote:
Originally Posted by DVaystub View Post
Hey guys, The code is "36c9"
Thanks for any ideas!!
Looks like to be an emission related DME code.
I looked it up and found other posts where 335/135 owners had the same issue with the same kit as you. Could be a coincidence..?..
Its hard with out being able to see your cars live operating data
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