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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 05-09-2020, 04:20 PM
Domni51 Domni51 is offline
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Mein Auto: 06 530i, 08 535i
Rough Idle Fixed But Should I be Worried

So I recently changed the valve cover gasket on my 08 535i to resolve an oil leak issue. No issues there except when I started the car for the first time the engine idled really weird.
The idle would do short surges from 1000 to 1500 rpms and would not repond to the gas pedal. No codes were thrown in the two to three times I started the car with this issue.
I double checked the cables to make sure I plugged things into the right place and found three plugs that were not completely connected (not pushed all the way in). Two that sit on top of the valve cover and one that sits on the oil filter housing.
I then made sure they were all seated properly and started the car again with the same results but now I had codes P16B9 (refer to service manual), P052B (Cold start 'A' Camshaft position timing Over-retarded Bank 1), P1632 (Throttle valve adaptation: adaptation conditions not met), P1417 (refer to service manual). I was using a FOXWELL NT 301 OBDII reader for this.

At least now I had somewhere to go with troubleshooting but before I hopped out to look up the other codes I decided to clear them and see if the car threw the same codes again. Except this time the car started fine. Absolutely no issues and no codes. I restarted it a few more times to be sure and everything seems fine.

So now I am wondering if I should count my blessing or maybe something is awry that just hasn't reappeared yet.
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  #2  
Old 05-13-2020, 04:44 PM
Toddmori Toddmori is offline
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Mein Auto: 2008 550i Sport
The adaptation code is kind of expected. A leaking valve cover changes the afr and your car has adapted to that. There is a relearn curve unless adaptations have been cleared. The cam sensor code, maybe you bumped it during the vcg replacement? It seems to be a common issue, and BMW plastic gets really brittle with age

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Old 05-13-2020, 05:07 PM
BabyUnicornTaco BabyUnicornTaco is offline
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Mein Auto: 2008 X5 4.8i E70 Sport
I donít think your Foxwell is BMW specific so you may not get all the specific codes. If you reconnected wiring harnesses and restarted without getting more codes you should be fine.


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  #4  
Old 06-02-2020, 08:48 PM
Domni51 Domni51 is offline
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Location: San Diego
 
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Mein Auto: 06 530i, 08 535i
Thanks for the feedback. No new codes since then though. I'm thinking to upgrade my reader to Autel MX808 (or maybe finally get around to installing INPA) so I can get more specific readings.
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gas pedal doesn't work, idles rough, no engine response, p052b, p1417, p1632, p16b9, rough idle, rough idle solved, surging idle, valve cover gasket, weird idle


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