Hello all, I am still getting reading from my fuel/air gauge that indicates a lean mixture. I changed the map to see if that was the problem. No effect! Same results. I installed a fuel pressure gauge, inline, before the fuel rail. my pump is putting out 48 psi at idle, which is right for a 1000feet above sea level I believe. At very light throttle settings I get rich readings that drop back to stoich. At full throttle the lights all but disappear and then go to red, which is lean. I dont see anything on the plugs like aluminum specs. I have a brand new o2 sensor. I haven't checked the pressure under load but I get no codes. Its like the car feels like its starved for fuel until you start to see some boost then it builds some power. I dont see any evidence of raw fuel in the vacuum line for the FPR,
jeff1234