So within the past year I've had two or three people come to me with a P2015 code. All of these people I now remember saying that the code came up around the time they got flashed, if not immediately after. I would replace the manifold, code would go away, no problem. I didn't flash the cars, so I never really put together how quickly the two happened.
Fast forward to last week. I flashed my own car with a different file. Within like 5 minutes of driving I got a CEL with a P2015 code. I thought no way could the manifold be bad and found it eerily coincidental that it happened right after the flash, and then remembered the other people saying the code came up after flashing.
Anyway, I messed with the solenoid on the driver side, took everything apart over there, cycled the flapper arm, etc. Cleared the code like 10 times, and it would immediately come back as pending within seconds of driving. Always around 2000RPM, and around 33% load, which I'm assuming is when the flappers are supposed to be opening. Even though the code kept coming back, I still wasn't convinced the manifold was bad.
Found something through Ross-Tech's website (Vag-Com) on adapting the flappers.
Link HERE.
Went through the adaptation process, and BOOM. Fixed. No CEL, readiness set, and I've driven around with the basic setting block open and you can see the flappers go to 100% and back to 0 when they are supposed to.
There is a voltage constant that I'm assuming gets skewed during the flashing process, and the adaptation resets it. I've driven quite a bit since doing this and still no pending and solid CEL. Just figured I'd give everyone a heads up before you waste time buying/changing a manifold.
LONG STORY SHORT:
-CEL for P2015 after flashing?
-Go to VAG-COM, open engine, basic settings, block 142.
-With the engine idling, hit the ON button up top to start the process
-You'll see the flappers cycle, and it will say ADT OK
-Turn the engine off, wait 60 seconds, start the car and clear the codes
-Problem should be fixed
Fast forward to last week. I flashed my own car with a different file. Within like 5 minutes of driving I got a CEL with a P2015 code. I thought no way could the manifold be bad and found it eerily coincidental that it happened right after the flash, and then remembered the other people saying the code came up after flashing.
Anyway, I messed with the solenoid on the driver side, took everything apart over there, cycled the flapper arm, etc. Cleared the code like 10 times, and it would immediately come back as pending within seconds of driving. Always around 2000RPM, and around 33% load, which I'm assuming is when the flappers are supposed to be opening. Even though the code kept coming back, I still wasn't convinced the manifold was bad.
Found something through Ross-Tech's website (Vag-Com) on adapting the flappers.
Link HERE.
Went through the adaptation process, and BOOM. Fixed. No CEL, readiness set, and I've driven around with the basic setting block open and you can see the flappers go to 100% and back to 0 when they are supposed to.
There is a voltage constant that I'm assuming gets skewed during the flashing process, and the adaptation resets it. I've driven quite a bit since doing this and still no pending and solid CEL. Just figured I'd give everyone a heads up before you waste time buying/changing a manifold.
LONG STORY SHORT:
-CEL for P2015 after flashing?
-Go to VAG-COM, open engine, basic settings, block 142.
-With the engine idling, hit the ON button up top to start the process
-You'll see the flappers cycle, and it will say ADT OK
-Turn the engine off, wait 60 seconds, start the car and clear the codes
-Problem should be fixed