Engine/Transmission (1994 - 1998) #4 plate?

[surfbeetle]

Not sure about the adjustment screw that you are referring to, but I can tell you that the TST plate comes with a fitting that either goes on the turbo (mine does) or at the AFC (other models) in line on the boost pressure line between the AFC and the Turbo. This fitting allows full boost to be at 30 psi rather than stock 20 psi.

 

[Matthug]

That screw is right beside where the boost line goes in the AFC, there's a dust cap with 2 screws holding it on 1 of them a break off screw like whats on the AFC housing.

I don't need the boost fitting, I have a turbo master wastegate control on the HX35 I installed to control boost.

What about the AFC housing itself? Which way do you slide it for more power?

 

[vssman]

The screw on the back of the AFC is the "pre-boost" fuel screw. The position of the screw controls smoke "puff" right off of the throttle. Going from memory, farther in is more fuel.

 

[Matthug]

Hmm, thats weird. I was watching the AFC arm and it seemed to move further with less PSI when I turned that screw out. But hey what will it hurt to turn it back in, I will give it a try. Thanks