Code #P0421. Please help.
#21
Sorry for the late reply guys.
The code IS BACK. I'll try to check the vacuum lines behind each head for the Kombi Valves, and if that doesn't work, I'll check the wastegate.
Jim-- Do you think you can point out to me where this wastegate is located?
Appreciate it!
The code IS BACK. I'll try to check the vacuum lines behind each head for the Kombi Valves, and if that doesn't work, I'll check the wastegate.
Jim-- Do you think you can point out to me where this wastegate is located?
Appreciate it!
thanks!
#22
Same issue
Has there been any progress regarding this issue. I have the same thing going on with my 02 A4 3.0, and poking around the engine compartment looking for a vacuum leak I found a really loose hoseclamp, I tightened it and I cleared the code with my scanner so we will see if it comes back. i would hate to spend any money if it could be a split or torn vacuum line.
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