Hello all, I'm new to the z32TT but have owned a z31T for several years. I recently purchased a 95 TT. It has a Jim wolf ECU, POP charger (single) and HKS exhaust. Idles fine, drives well until you get into it and then it starts missing at about 4500. Boost guage is showing 11 psi. With my z31 I had to pull the gap in on the plugs with increased boost. Do I need to do the same with the Z32? Or is there something else I need to look into. Thanks for your help.
Arza

 

check to make sure you have the right plugs first. At Stage III on a Twin Turbo, it's pretty much a requirement to go with the colder PFR6B-11B plugs. But too large of a gap could be a problem too assuming you have the correct plugs installed.

 

I believ the gap should .035" on the 6B-11B's. Also check your timing. Should be 15 degress BTDC.

 

hesitation is what it sounds like you're dealing with, this could be caused by a whole bunch of things. Check out this link, it helped me a lot when I was dealing with hesitation issues.
http://twinturbo.net/ttnetfaq/FAQpages/hesitate.html
and also
http://twinturbo.net/ttnetfaq/FAQpages/hesitate2.html

 

Thanks for the help! Now I have several things to look at.