Car runnning EXTREMELY rough after throttle body adaption reset

partymartyy · 05-01-2019, 01:59 PM

Hello everyone.
My car has been running a little rough here and there during idle.

Brief backstory: My 2011 535xi was throwing codes p306d (misfire on cylinder) and p112f (MAF).

90k miles

I replaced the MAF, and engine airfilter. Still have CEL, but the rough idle is nearly gone.

A few weeks go by, idle pretty normal now.

(https://www.e90post.com/forums/showthread.php?p=6309845)

After reading multiple posts, I try to do the throttle body adaption reset.

Immediately after doing the reset, my car is shaking HORRIBLY at idle. I don't even want to drive it... The car is jerking extremely hard and RPMS are fluctuating from 500-1500. Previously, I'd say the idle was a 2/10 on a scale of 10 being horrible. Now, after the throttle reset, its a 10/10.

When popping the hood, I notice my pulley is shaking like crazy.

Could this be a software issue? Will this go away if I drive for a few hundred miles? Should I replace the throttle all together?

Thanks....

Surly73 · 05-01-2019, 02:40 PM

It just popped into my head that I read once that after doing one of the adaptation resets, it may have been throttle body or valvetronic, you need to shut off the ignition, wait, turn on the ignition WITHOUT starting the engine and WAIT, then start the engine. If you don't, you have trouble. Your story sounds like trouble.

Might be worth trying another reset but with more waiting at each stage - like 30s?

partymartyy · 05-01-2019, 03:04 PM

Tried it again.. unfortunately no success.. I read my CEL, found codes P112F, P306d, and P115d... No surprise from the P112F, but could simply resetting the throttle cause p306d and p115d? Just seems crazy...

wcr3d · 05-01-2019, 03:09 PM

You really need a bmw specific scanner.
Also CEL are emissions related warnings.

partymartyy · 05-01-2019, 03:10 PM

Going to dealership tomorrow.. I will update with any information

HizEternal · 05-02-2019, 07:06 PM

I may have read it wrong but you also had a misfire and decided doing a throttle body reset was a good idea before diagnosing the misfire? Seems that’s what lead to your trouble. The engine already had a timing problem and you decided to put it in learning mode during that problem. Fix the misfire and I’m sure it will properly learn the throttle body position to run smoothly again.

superlazy · 12-13-2019, 04:42 PM

What was the result? I got a P112F code yesterday.

05-01-2019, 01:59 PM	#1
partymartyy New Member 2 Rep 17 Posts Drives: 11 535xi Join Date: Jan 2019 Location: atlanta iTrader: (0)	Car runnning EXTREMELY rough after throttle body adaption reset Hello everyone. My car has been running a little rough here and there during idle. Brief backstory: My 2011 535xi was throwing codes p306d (misfire on cylinder) and p112f (MAF). 90k miles I replaced the MAF, and engine airfilter. Still have CEL, but the rough idle is nearly gone. A few weeks go by, idle pretty normal now. (https://www.e90post.com/forums/showthread.php?p=6309845) After reading multiple posts, I try to do the throttle body adaption reset. Immediately after doing the reset, my car is shaking HORRIBLY at idle. I don't even want to drive it... The car is jerking extremely hard and RPMS are fluctuating from 500-1500. Previously, I'd say the idle was a 2/10 on a scale of 10 being horrible. Now, after the throttle reset, its a 10/10. When popping the hood, I notice my pulley is shaking like crazy. Could this be a software issue? Will this go away if I drive for a few hundred miles? Should I replace the throttle all together? Thanks.... Last edited by partymartyy; 05-01-2019 at 02:19 PM..
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05-01-2019, 02:40 PM	#2
Surly73 Lieutenant Colonel 534 Rep 1,873 Posts Drives: '11 535xi 8AT KWv3 MPE MHD xHP Join Date: May 2012 Location: Oakville, Ontario iTrader: (1)	It just popped into my head that I read once that after doing one of the adaptation resets, it may have been throttle body or valvetronic, you need to shut off the ignition, wait, turn on the ignition WITHOUT starting the engine and WAIT, then start the engine. If you don't, you have trouble. Your story sounds like trouble. Might be worth trying another reset but with more waiting at each stage - like 30s?
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05-01-2019, 03:04 PM	#3
partymartyy New Member 2 Rep 17 Posts Drives: 11 535xi Join Date: Jan 2019 Location: atlanta iTrader: (0)	Tried it again.. unfortunately no success.. I read my CEL, found codes P112F, P306d, and P115d... No surprise from the P112F, but could simply resetting the throttle cause p306d and p115d? Just seems crazy...
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05-01-2019, 03:09 PM	#4
wcr3d Captain 461 Rep 659 Posts Drives: 2013 535i XDrive M Sport Join Date: Aug 2012 Location: Indiana iTrader: (0)	You really need a bmw specific scanner. Also CEL are emissions related warnings.
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05-01-2019, 03:10 PM	#5
partymartyy New Member 2 Rep 17 Posts Drives: 11 535xi Join Date: Jan 2019 Location: atlanta iTrader: (0)	Going to dealership tomorrow.. I will update with any information
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05-02-2019, 07:06 PM	#6
HizEternal New Member 8 Rep 20 Posts Drives: Jet Black F10 535XI Join Date: Nov 2016 Location: DC iTrader: (0)	I may have read it wrong but you also had a misfire and decided doing a throttle body reset was a good idea before diagnosing the misfire? Seems that’s what lead to your trouble. The engine already had a timing problem and you decided to put it in learning mode during that problem. Fix the misfire and I’m sure it will properly learn the throttle body position to run smoothly again.
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12-13-2019, 04:42 PM	#7
superlazy Registered 0 Rep 4 Posts Drives: 550xi, Z3 3.0 Join Date: Oct 2015 Location: Denver, CO iTrader: (0) Garage List 1985 Vespa P200E [0.00] 2001 BMW Z3 3.0 [0.00] 2007 Mercedes-Benz ... [0.00] 2011 BMW 550xi [0.00]	What was the result? I got a P112F code yesterday.
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