Originally Posted by
oldford
Looks like you have a non-linear regulator. If your mapping is not for this regulator, but rather for the standard linear regulator, then Yes, change it.
I would change it anyway, and when necessary adjust the mapping to a linear regulator.
Ive only just bought the car. Its running 803 greens, t34.63 turbo, wasted spark, 3 bar map sensor and an MSD chip but reading through the receipts, the aftermarket fuel regulator wasn't mentioned when the chip was ordered and i don't think its had a proper set up on a dyno?