89 200q ISV function

[Huppert, Eric]

Ed,

 

Had a problem a while back somewhat similar with my 90 200TQ. Check the WOT
switch (idle portion). Turned out (on mine) that the wires to the WOT switch
were broken just back from the connector and not allowing the idle portion
of the switch to function. Check Scott's site, has extensive and detailed
electrical and component troubleshooting.    

 

http://www.sjmautotechnik.com/

 

When you clean the ISV (I use carb cleaner) keep spraying and dumping until
cleaner is clear!

 

Eric