It depend on how its wired up.......
My activates with a adj boost switch.
First
You could look if it has seperate wires, if it does you must trace the wires to see where its connected...
or maybe just look for a boost switch...........
/N.
How do you do It?
My nr2 pump kicks in at 5 psi and them ny FP goes up to 60psi and the car is pig rich.....
Would it be easier to tune if it starts @ 1psi then I have 60psi all the time under boost?
This is def. not my area but check:
Whats your map readings before and after the mods?
Pull the vacuum hose to the AFPR and see if its coming fuel throug the hole on the regulator.
Ok..
Roumors says that the *new* FAST should be realesed this summer so I'll wait for it, and stick with my stock ECM for a while and doing some ERPOM work with the $58 code.......
/N.