[6ixSpd]

Pressing the pedal before engine start works well, but I found I still had a slightly unsteady idle on successive restarts. Redlining the car a few times under load resolved it. Idles smooth as butter afterwards.

[AlexA]

Your post saved me from huge embarrassment at work when I restarted the car & the revs were hunting up & down making a racket!

I can't reset the adaptations either, I figure that's because they're not fixed yet. Here's hoping anyway. The good news is that my car does feel better to drive after the reset.

[axis]

Originally Posted by AlexA

Your post saved me from huge embarrassment at work when I restarted the car & the revs were hunting up & down making a racket!

I can't reset the adaptations either, I figure that's because they're not fixed yet. Here's hoping anyway. The good news is that my car does feel better to drive after the reset.

It's crazy that this has helped so many people. I haven't had my e90 in a while (I miss it, traded for a 2011 w204 Mercedes) but did just get back into the BMW family again recently via my Wife's 2015 535i that she wrecked, and now a 2019 F36 430i so it was cool to read these posts.

On a side note, It's so much easier to code the newer F and G series cars with Bimmercode.

[Scottchn]

Originally Posted by axis

Update on the half engine light.. It seems to be gone now. The way I got it to go away, however, was pure luck. What I did was put the key in dash, and pressed the start button without holding the brake to turn on the ignition. Then I pressed and held the gas pedal down for about 30 seconds, released it, then pressed the brake down and pressed start again to turn the car on. The light didn't come on. I turned it off, then restarted it again and still the light did not return. My reasoning for trying that was because I thought maybe since I reset the adaptation that the car didn't know what the limits of the throttle pedal were anymore. Not sure if that's what it was or what but the light hasn't come back since. I still can't access the DME/DDE for clearing adaptations anymore but for now I'm just not going to worry about it.

I did this after replacing my vanos, and cam and crank sensors on my e90 320i euro. It wouldn't start consistantly and idled up and down with clattering and throwing vanos and cam sensor codes. After your throttle reset and subsequent start, key off fault clearance. It now runs sweet again with all it's bottom-end power pack. I hate to think what it might've cost me if I hadn't read your post. A note for others like me with older 150k plus cars... Vanos needs good oil pressure to operate correctly. changing to 15-40 can help. I lso learned that there's a non-return valve with an allen head next to the cam chain tensioner which can become fouled and cause low oil pressure at startup which can contribute to vanos fault codes. So if you've replaced your vanos, and you still get codes...Try a grade heavier oil and replace the non return valve. Thanks again.

[plilp]

Just yesterday I discovered the bimmerprofs' article about resetting adaptations and as I have changes my plugs and coils (DIY) about a month ago, I though wth I should probably do this.

So I did. When I started the car for the first time I legit nearly shat myself thinking I've done some irreversible damage. Thank god I found your post so quickly and was able to fix the issue right then and there. Thanks again Axis!

[wayman519]

If you read the code then all you need to do was a throttle body adaptation. If you think you are wise enough to reset the car, you better be wise enough to trouble shoot the fault code list.

[plilp]

Originally Posted by wayman519

If you read the code then all you need to do was a throttle body adaptation. If you think you are wise enough to reset the car, you better be wise enough to trouble shoot the fault code list.

I can't answer on others behalf but to me the error code didn't clearly indicate that that would fix the issue. But then again I'm a novice and learned the hard way. Thanks again to Axis (and others) for sharing this kind of experiences online, it really helps us "not so well informed" out here.

[wayman519]

Originally Posted by plilp

I can't answer on others behalf but to me the error code didn't clearly indicate that that would fix the issue. But then again I'm a novice and learned the hard way. Thanks again to Axis (and others) for sharing this kind of experiences online, it really helps us "not so well informed" out here.

Sorry i came off pretty harsh. Must have had a bad day lol. But what i am getting at here is ask us on here before doing stuff like resetting. This forum has some great people and you will get answers.

[BZ92EEE]

I have a problem with my e92 325i N52B25A after resset adaption! The car crank and start but have problem with idle , no error in dash ,nothing ! It is possible to be the same problem? I performed that trick with pedal for 30sec but didn’t work for me
Thanks

[BZ92EEE]

Originally Posted by BZ92EEE

I have a problem with my e92 325i N52B25A after resset adaption! The car crank and start but have problem with idle , no error in dash ,nothing ! It is possible to be the same problem? I performed that trick with pedal for 30sec but didn't work for me
Thanks

Anybody? Please Help!!! In Romania you don't find somebody who knows about N52 and I'm disparate .
Everything fine before reset adaption ! After reset adaption at cold start it's shaking the rpm go down to 200-300rpm go up again and after 1 minute it seems to be ok. Sometimes even at hot start it's shaking just for few second ... I have inpa and ista . What should I check ? Please someone
Thanks :

[freakystyly]

The car will act strange after a reset. Drive it around the block if it is safe to do so until it learns to behave.

[BZ92EEE]

Originally Posted by freakystyly

The car will act strange after a reset. Drive it around the block if it is safe to do so until it learns to behave.

I drive 1500 km after reset adaption and nothing change !

[freakystyly]

Was there any other work done before the reset?

I think someone had switched the vanos solenoid plugs by accident when cleaning, which caused a similar issue.

Have you checked for any codes with a reader?

[BZ92EEE]

Originally Posted by freakystyly

Was there any other work done before the reset?

I think someone had switched the vanos solenoid plugs by accident when cleaning, which caused a similar issue.

Have you checked for any codes with a reader?

Nothing happen with the rest of the component !
I just replace the ignition coils and spurkplugs and two weeks ago I replaced the pre cat O2 sensors !
That car start fine before resetting adaption ! This issue appears after I reseted !

No codes with the reader , I used inpa and ista and no codes