
Originally Posted by
Fivefingerdeathpunch
That fuel rail is from like a 97 model year, I don't know exactly what it does but it just holds more fuel there and likely does something to fuel pressure.
70 psi of fuel pressure sounds really high also. Not sure if rail related, swap your 99 fuel rail on and see if anything changes.
See what the injector duty cycle is, injector ms doesnt always mean they are running static. If you are still only at 75-85% duty cycle, you are not running static with it at 18ms.
And seeing -22 LTFT while driving isnt right, it should not be trying to always take away that much fuel.