Code 11510 and bad idle oscillation on startup?

Tronner · 08-14-2012, 03:10 PM

Has anyone else seen code 11510? Every other day or so, I get a crazy startup idle oscillation that is really bad. The car pulses terribly for about a minute then finally settles down with half engine light on. Once it calms down the light stays on but the car seems to run fine although of course I haven't pushed it at all, just cruised home. Shiv said it's related to throttle valve potentiometer plausibility, which could be a vacuum leak. Where should I start looking? Here is a video when the idle is actually starting to calm down. The first 10 seconds are so are more representative of what it's doing. It's much worse at times.

http://youtu.be/VJNALDxZX0k

enrita · 08-15-2012, 03:26 AM

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08-14-2012, 03:10 PM	#1
Tronner Second Lieutenant 76 Rep 291 Posts Drives: 2018 X3 M40i Join Date: Sep 2010 Location: Edwards, CO iTrader: (2)	Code 11510 and bad idle oscillation on startup? Has anyone else seen code 11510? Every other day or so, I get a crazy startup idle oscillation that is really bad. The car pulses terribly for about a minute then finally settles down with half engine light on. Once it calms down the light stays on but the car seems to run fine although of course I haven't pushed it at all, just cruised home. Shiv said it's related to throttle valve potentiometer plausibility, which could be a vacuum leak. Where should I start looking? Here is a video when the idle is actually starting to calm down. The first 10 seconds are so are more representative of what it's doing. It's much worse at times. http://youtu.be/VJNALDxZX0k
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08-15-2012, 03:26 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	search is your friend: http://www.e90post.com/forums/search...rchid=23372199 __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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