I got my 2004 GLI flashed at a local tuner with C2 software. Before I got the car flashed I had no cel what so ever. Around an hour after I got the car flashed I got a cel. I checked the codes with my handheld scanner from autozone and got two codes. O2 sensor bank 2 heater circuit, and a p0015 cam position sensor malfunction bank 1. I cleared the codes and restarted the car and on my way I went. I get home no cel the whole trip. I get in the car the next day start up and about 30 seconds after the car starts cel comes back on. I read the codes and same two codes, again I clear them and the car runs fine 45 miles to work and no cel. This continues every time I clear the codes they go away and dont return till the car cools off.
I had my car scanned with vag-com today and I got P1340 and that is the only code that it showed. Cam position sensor below threshold, I did some research and found the tech bulletin that leads to faulty sensors or lengthened timing chain. I just dont have vag-com on hand right now to run this test.
I am having a hard time believing that the timing chain is stretched due to the fact that I only started getting this code after I got flashed. I want to know if anyone else has had this issue with any of the UM or C2 n/a software. Is this something that a reflash will take care of?
As far as the O2 sensor bank malf does the C2 flash require the use of a highflow cat?
If anyone knows Jeff of united motorsport or formerly C2's username I would like to IM him to ask a few questions.
mods on the car:
Borla cat back
k&n flat panel with bottom 1/4 of stock air box cut out
All in all the car runs great the VVT makes a noticeable difference at 4k rpm under WOT, the sound of the engine changes when the cams advance, and the intake flapper shifts. I am very pleased with this tune overall with the exception of the two nuisance cel's that I have. At least I hope they are nuisance, I really dont want to do my chains just yet.
Any help would be great!!!