Throttle position control Fault

[Hack213]

Hey guys own a 2008 x5 4.8 96,646 miles . A week ago I got the valve cover gaskets and spark plugs done with a friend , picked up the car 3 days later and was driving smooth on the 4th day on my way home from work car went to limp mode and I quickly connected my obd 2 pocket scanner and got this code p1637, I shut off the car and waited a minute turned it back on and the car drove fine.
I hooked it up to the x5 to my laptop scanned it with rheingold and nothing came up anyways since then I haven't driven the vehicle afraid to have it go to into limp mode ;(

Previous work done throttle body harness and gas pedal and throttle body changed.

P1637 11505 Throttle position control – control deviation, bank 1 Wiring, throttle motor position sensor, ECM

I read about the harness being shorted out but I'm not sure where to start anyways thank you guys!!

[Hack213]

Anyone please ?

[Hack213]

Guys please help connected my x5 to rheingold and these are the latest



Do I need to redo the throttle body harness splicing again? I noticed this limp mode comes on when I'm idled for 2 minutes and floor the gas pedal car also shut off and shifted to neutral while in limp mode

[Stockx5]

what's the suggested test schedule in Rheingold? did you run it?

[Hack213]

Originally Posted by Stockx5

what's the suggested test schedule in Rheingold? did you run it?

Thanks for replying man brotha , and no I did not I'm still not familiar at all with the app I just use it to run codes . I'm wondering if I should start by changing the throttle body these were the obd2 codes I got p1638 p1637 p1062 p0120 p0221. Again once shut off the car goes away , but when accelerating hard limp mode

[Stockx5]

In the bottom right hand corner where it displays the codes it should say "test schedule"
it will take you to a screen where a number of tests can be run to trouble shoot the issues.

[Hack213]

Wow , so I recently cleared these codes in October by changing the throttle body harness and splicing the new updated harness ..codes are back along with

P1062 BMW - Valvetronics Power Limitation

Possible causes
Faulty Valvetronic Sensor
Valvetronic Sensor harness is open or shorted
Valvetronic Sensor circuit poor electrical connection

At a cold start I moved my car to my garage from the street and
I got a cruise control malfunction on the idrive and was in limp mode

[Hack213]

Can lack of an oil change and dirty oil cause intermittent fault with 2A6B valvetronic, power limitation, servomoto

Or would the actual valvetronic motor be the issue? I clear codes with rheingold and car ran fine all day today ,no oil found inside essentric shaft sensor, anyways today I drove my car and no codes or anything but I just want to prevent this from happening again any ideas thanks,

[andrewwynn]

Sounds like electrical Gremlins to me. Dirty connectors. Look for some deoxit pro gold and use something like a q-tip and clean every pin connector on every connector


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[Hack213]

Throttle body harness was not installed right causing this issues just wanted to update people, I have another thread with electric gremlins I'm gonna check here if anything came loose again I hope !