[i2iSTUDIOS]

I am getting all sorts of errors and I'd like some help.

First I was getting 2CF7 AND 2CF6 Throttle valve potentiomenter. RPM at ide were rapidly changing 300 rpm at idle.

I removed JB4

and Now I get

2CFB:
2CFB Throttle valve adaptation value
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Short circuit or signal interruption

2D09:
2D09 butterfly valve
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Timeout

Did I mess something up when I removed JB4? The throttle is comply unresponsive now.

(I have no other engine/drive train mods) oops wrong forum, sorry.

[JamesM3M5]

Check for bent pins in your ECU connectors. If you didn't touch the throttle, either there is a supreme coincidence that the throttle failed at the exact same time or there are bent or damaged pins in the harness. Or the harness has a defective crimp on one of the pins and you've aggravated it by unplugging the JB. Recheck all your connectors.

[Schnitzel]

I'm getting the same errors with Procede Rev3. Any ideas?

[E92ML]

Any updates? I was getting 2CF6 and 2CF7, I reset the adaptations and unplugged the battery and let the car sit. Currently its not surging while idling. I just really hope it doesn't come back. Maybe Terry will chime in.

[E92ML]

Codes and problems came back today...

[135-CS]

Dude did you resolve this problem? Im getting the same codes.

[Indo Rider]

Same shit for me. Happened for the 3rd time today. Last time I had to get a ride to work, then when I got home it started right up just fine and no problems until today. Seems that people can usually get things back to normal temporary by clearing codes, resetting adaptations, or something else like removing the tune, but like I said, I had an undrivable car in the morning, then it ran perfectly fine in the afternoon. I'm led to believe I need to buy and replace the whole throttle body. I think that's the only way anyone has permanently resolved this issue. I just hope it's drivable in the morning. It's drivable now, but it bucks a bit with the the throttle surging slightly.

[JO3]

Bump..

I started having the same issue today. Anybody get this fixed?

[Fillyo75]

your fu*@ed

[Cmaddox335]

Bumping this thread.

I have the same problems as the OP, except its everytime I start the car the throttle surges. It throws 2CFB and 2D09.

It all started happening after water got in the ECU and caused arching on the pins. My case seems obviously like I will have to replace the ECU. :/ Big money.

[Dmacc]

I may have answer to this SHITTY problem that no one seems to know or speak about! If you are getting these codes, check your chargepipe connection to the actual throttle body. If it becomes loose, you will throw these codes. If it becomes really loose, there could be a chance of the o-ring in the charge pipe getting sucked into your throttle body. If you restart the car after resetting throttle adaption and it is gone, it probably could be a boost leak. But if you keep starting the car and it is not starting up normally after the reset, take off the charge pipe and check in the butterfly of the throttle body, chances are your o-ring may have got sucked into there and is messing with the butterfly valve. The main thing to check is for a secure connection with the charge pipe and throttle body.

[edyuly]

I am getting these codes also after removing all my mods my car is completely stock. Can anyone confirm these tips from above worked. Even changed the throttle body and codes still persist

[stormtrooper7]

Throttle issues here too (and I'm in a 330i). Hope I don't have to replace the entire TB. Last time I took it off it was spotless.

Anyone have a solution?

Before I thought it was the cold weather causing it, now that it's warm out, I just recently had it happen. Actually, the car is running fine with the half engine light on (throttle response is a little sluggish though). And, it did surge the other day while I was at a light.

[Poldav6]

Hi, I am here with 2CFB and 2D09 codes. E92 FBO, JB4.. These codes appeared after resetting throttle adaptations.

The problems came on 2 times when WOT, after reaching 6500 rpm

So, is there a solution? I read it might be: fuses, relays, chargepipe connection, throttle body, ECU

[b1mmr]

Bump for you gl.. Getting cda7 myself

[supahman04]

Seriously?!! Anyone fix this?! I've changed the battery since someone said that fixed it. I've checked the O-ring. I've changed the plugs. I've changed the throttle body. I've reset everything possible. It still throws 2cf7 and 2cf6 and some random other codes. But the throttle body codes are the consistent codes. ANYONE?!?!?!?!?!

[Thewind727]

I know this is an old tread but i just wanted to share my experience with this.

I pulled the throttle body and intake off to clean my valves and when i put it all back together everything was fine for a bit then i started getting some codes for the throttle valve potentiomenter and butterfly valve. clearing codes and resetting adaptations would fix it for a few mins but it kept coming back. I pulled everything back apart and the electrical plug for the throttle body was loose!!!! i never touched that plug when taking things apart i just left the TB sitting down in the engine bay so long story short double check your connections, that plug at least doesnt seem to have a very good connector on it

[335e92tx]

DO NOT reset throttle adaptions with bav tech or inpa cable (via mhd). Using either will CAUSE this problem. Reset it using the factory accelerator pedal method..

Check youtube

If you still get these codes after resetting TA with the accelerator then you might have a problem.

[wooboodoo]

Darn I'm just getting that stupid code and have exact same issues, did anybody finally get ride of it?
I replaced throttle body and did smoke test for eventually leaks but didn't resolve that problem yet.

[carolinahurricane]

Same problem here with the E60 (N54). I removed my JB3 at the same time I replaced fuel injectors, coils, valve cover gasket and cleaned intake valves.

I will try resetting TA with accelerator before checking TB electrical & mechanical connections and then look for a loose o-ring inside per advice above.

I, for one, will be posting what solves the codes I currently have:
2D58 [DME digital motor electronics, internal failure: control nominal torque?]
2CFB, 2D09.

[carolinahurricane]

After unsuccessfully trying to reset my engine adaptations, I took her to the shop. Shop said they reset DME, installed the correct "program," reset all adaptations, re-learn throttle body and reconnected some turbocharger plumbing. Drives fine for now, hope this helps.

[335e92tx]

Yep, once this random hunting situation occurs it seems most BTech - nor IPNA interface can resolve. Sometimes it can be the completely erratic bouncing idle from 800-1500 and that generally can be fixed by foot reset TA. But I was also getting an occasional idle stumble almost die and then correction to over 1000 rpm when at lights. That seems to require some reset process performed at most indy or dealers. Never could figure out what it was myself.

Still get a closed loop surge at very light throttle openings myself even after vanos solenoids and front O2 sensors