diag codes-idle switch
daveglu at hotmail.com
Thu Apr 16 20:32:10 PDT 2009
OK, spring's here, time to get stuff out.
I purchased a 91 200t 20v for an engine swap into my UrQ.
It runs fine, but in limp mode (1.3 bar boost).
So today I pulled codes and only got 2121 (Blink Fault Code), 00516
VAG1551/2 Fault Code Number
Idle switch problem
Switch open circuit, stuck closed Switch defective (Internal solder
connections intermittent) or wiring problem.
Is this a common problem, is there a repair?
I am thinking of putting the 20vt in the UrQ and bringing along the inj.
I know probably should just go with the 034 and be able to bump the boost
easily, but if I can get this running right, I think I could be happy with a
stock boost 20v for quite a while.
More information about the 200q20v