Help! Boost problem!
AudiWorld Super User
Joined: Aug 2002
Posts: 3,011
Likes: 0
That's the wonderful world of limp mode
Some possibilities:
(from personal experience)
check the connection to your maf
then check the n75 wastegate control sollenoid
best bet is to get your hands on a vagtool to see what the problem is. I was stuck in limp mode for 5months trying to figure out what was wrong, only and replaced the N75 to no avail. In the end it turned out that a cable broke underneath the sheath and I had to resolder it. Imagine the feeling of going from limp mode to being chipped for the first time =0.
(from personal experience)
check the connection to your maf
then check the n75 wastegate control sollenoid
best bet is to get your hands on a vagtool to see what the problem is. I was stuck in limp mode for 5months trying to figure out what was wrong, only and replaced the N75 to no avail. In the end it turned out that a cable broke underneath the sheath and I had to resolder it. Imagine the feeling of going from limp mode to being chipped for the first time =0.
AudiWorld Uber User
Joined: Mar 2000
Posts: 66,965
Likes: 1
You could be leaking boost, your ECU could be limiting boost
(based on any number of things that could be wrong), or, yes, your gauge could be wrong.
You could start checking the hoses and boost gauge connections. Scan the ECU with vag.com to pull any codes that might give you a clue. Finally, pressure test the system to see if there is a leak. Somebody posted a nice write up on building your own pressure tester...scan through today's posts.
You could start checking the hoses and boost gauge connections. Scan the ECU with vag.com to pull any codes that might give you a clue. Finally, pressure test the system to see if there is a leak. Somebody posted a nice write up on building your own pressure tester...scan through today's posts.
Thread
Thread Starter
Forum
Replies
Last Post
SolidFish
Rocky Mountain Discussion
4
Mar 1, 2008 06:55 AM
SpyderSE2(movie man)
A4 (B5 Platform) Discussion
16
Jan 12, 2006 06:27 AM
bnl107
S4 / RS4 (B5 Platform) Discussion
12
May 26, 2005 04:44 PM
