just got my rb25 tuned the other day with the td06sl2 10cm, greddy copy, 440cc injectors, aftermarket throttle body, custom low mount steampipe manifold, full 3 inch exhaust, bosch 040 fuel pump.
Car made 268 hp on 15 psi and it started to lean out on full throttle.. and this is my problem now D:
tuner said tps could be and issue wiring wise, could bereading backwards or opposite or something..
mabey faulty fuel pressure reg? im running a sard fpr but i think it was faulty from the start so i am changing this, thoughts anyone?