right now my idle fp is 47psi i notice when im like 45-hmmm 65mph i notice if i let my foot of the gas my base fp goes down to 42-44psi at thoses speeds.. just wondering if thats ok ( i assume since im on the go its ok and all ) or should i increase my idle fp up a few psi so when im at 45-65mph it wont drop so low? my idle fuel trims are both within -/+3% thanks Michael 99gs HRC Stage IV 8-Injector Setup 2GNT Member #32
#54098, "RE: 8-injector tuning/ idle fuel pressure" In response to Reply # 0
That's fine, the fuel pressure is lower there because when you let off the gas on the highway you get more vacuum. More vacuum = less air = less fuel. Don't worry about it.
Matt 1995 Eclipse GS 2.0L, S16g Turbo, 8 Injectors, 26psi
1998 Eclipse GSX 2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...
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