Fcd

[Brett]

Heres one for you

I\'ve installed a Knight sports FBCD and have noticed that since then the boost does not climb above halfway (positive side) which would equal about 4psi max. Now is it my duty solenoid being a git again or has the FCD also modified the signal to the guage?

(1991 TII btw)

Cheers guys! :wiggle

[antnicuk]

from memory,  the stock guage takes the signal from the map sensor and the FCD changes the signal out of it so the car doesnt think it reahces 8 psi.  Thats probably why its reading less
regards
Tony

[Brett]

Cheers, that would confirm my suspicions, I\'ll plumb in my other boost guage at the weekend and see what we really have