Last week I removed my Accelerated Warm-up Solenoid valve and capped off the nipples on the BAC and Intercooler. I disabled the accellerated warmup cycle years ago.
I don't know if this is related or not, but now when I turn on the headlights, the car runs real rough. Wants to die when I apply the brakes.
In fact I can get the car to die by pumping the brakes w/o the headlights on.
You guys think that this is related?
The car idles like a champ without touching the headlights or brakes.
Do you think that running a vac line connecting the 2 nipples between the intercooler and the BAC would help.
My thought is that the BAC is starving for air or somthing now.

 

Sounds like you killed the bac's air supply.

 

Should I run a vac line like I said??

 

do it and see if your problem goes away!

 

??? the BAC and AWS do not even touch each other. the AWS line goes from the manifold to the IC. block both of those off, don't touch the BAC.


edit: unless it's different on S4....

 

The S4 must be different. The lines from the AWS go from the intercooler.....to the AWS...to the BAC.