View Full Version : Turbo underboost p0299 code never appears when weather is cold.
daudic
02-09-2011, 09:50 AM
I added APR Stage 1 last March. During the warm/hot weather, I was getting the usual p0299 code if I drove the car hard. I tried all the usual ways to fix it and I have a scanner to clear it, but anyway.
To my surprise...it doesn't throw a code during cold weather. I flog the sh_t out of it and no fault codes appear.
I'm just looking for others who might have experienced the same thing and used this senario to troubleshoot their issue.
Thanks!
viziers
02-09-2011, 10:41 AM
boost leak!
vbrad26
02-22-2011, 10:23 PM
got this earlier today...
car is moving slloowwwwwww
im thinking leak from an old oem DV?
yes? no?
daudic
02-23-2011, 04:55 AM
got this earlier today...
car is moving slloowwwwwww
im thinking leak from an old oem DV?
yes? no?
Could be the DV or N80 valve. Both are near the turbo.
B72.0T
02-23-2011, 05:21 AM
Could be the DV or N80 valve. Both are near the turbo.
How is the N80 valve near the turbo?
This is the N80 valve.
http://i31.photobucket.com/albums/c395/fly300kts/N80%20DIY/DSC03083Large.jpg
vbrad26
02-23-2011, 08:40 AM
well im going to try to replace the DV today and see what happens...
vbrad26
02-23-2011, 01:31 PM
well new DV fixed the problem lol
http://i71.photobucket.com/albums/i154/vbrad26/photo2-4.jpg?t=1298496357
Adub-Drew
02-23-2011, 01:52 PM
haha good catch...
vbrad26
02-23-2011, 02:01 PM
anyone know if the CEL will go away after a few cycles though?
or do i need to clear it?
daudic
02-23-2011, 06:22 PM
How is the N80 valve near the turbo?
This is the N80 valve.
http://i31.photobucket.com/albums/c395/fly300kts/N80%20DIY/DSC03083Large.jpg
Thanks for finding that error. I should have said n75.
B72.0T
02-23-2011, 07:35 PM
No problem.