Dave wrote:
> 
> I have had my idle stabilizer, 1987 2.1l, unplugged for about 4 months.  =
> My VW dealer actually disconnected it, I have since added a switch to =
> turn it on for cold starts.  The idle was at 2000 before it was =
> disconnected, it ran at about 1000 for a while, now it's back up to =
> 2000.  When the idle stabilizer is connected it idles between 3000 and =
> 3500.  
When this happened on mine, I troubleshot for 10 days as possible and
finally took to Dieter. Deiter determined Throttle Position Switch bad,
replaced and all is well (less $75 TPS plus $130.00 labor
diagnosis/repair).
Regards
Mark B. Magee
87GL 82K
Kemah TX USA