Join Date: May 2006
Location: San Diego, CA USA
Feedback Score: 0 reviews
Fooling the MAP sensor
I've got either a very dumb or very esoteric question regarding "fooling" the Manifold Air Pressure sensor (with a Boost Annihilator or the like) so you can run higher boost without causing de-fueling due to overboost.
I'm under the impression that the MAP sensor is used, at least in part, to determine how much fuel to feed to the engine. Is that wrong? If it's not, then why aren't you under-fueling at boost levels that are higher than what you're showing to the MAP sensor? It seems to me like the system is running open-loop instead of closed-loop at that point.
Early 1999 (2/98) Cali-spec F-250 XLT SD CC 7.3 2WD Short Bed Auto - Triple Gauges - Ford AIS with Fender Sleeve mod - Banks BHA - NCHornet CCV mod - BTM - '06 seats - John Wood trans - 6.0 trans cooler - DP-Tuner F5 chip 40T/60T/80E/120 - ITP Overboost Annihilator - DI Regulated Return - Terminator dual HPOP - Airdog