Coupe Quattro no Worky! The saga continues

[Richard Hoffman]

SO I finally have daylight to work on the no-start CQ, and I spend ~1hour 
fiddling around building a new 1115 test light.  Then I blew the fuse 
controlling diagnostics.  DOH!

Replaced the fuse, then pulled the codes - 4431 - the Idle Stablizer Valve. 
A code I have had since Day 1 owning this car.  That was the only code I 
know that won't contribute to a no-start condition.

Pulled plug number 1 - black with whitish powdery stuff on the eletrodes.  
Pretty normal.  Plugged it in to check for spark, enlisted an extra 
hand....the car starts right up, on 4 cylinders, number one blurping through 
the open spark plug socket.

WTF?????

Plugged it all together again and the car runs just fine, starts easily, no 
problems to report that I didn't know about before - the bomb, whirring 
noise, etc.

Of course the car feels so stiff to me know - I've been driving a Ford Focus 
from my roommate off and on and it sure it GOOD being back in an Audi, let 
me tell you!

Any thoughts?  It would seem an electrical gremlin has gotten into my 
ignition.  I was thinking of replacing the fuel pump relay since it might be 
getting tired in its old age but I've never been a fan of randomly replacing 
parts!

Thanks for your input!

Richard
1990 CQ 191K now infested.....

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