i floor it through 1st 2nd n 3rd then in forth check engine light turns on n rev limiter kicks on at 6500 rpm n stays on till car is shut off then its fine again till its time to go fast. computer??
mods: intake, nuespeed injectors, fuel pressure regulator, fuel pump, 8.5mm wires

 

cant tell by guessing.

so take it some place and have the codes pulled.

so if the light stays on till you turn it off, dont turn it off till them codes are read.

if its a old tegra you may be able to read the codes your self by counting the red LED flashed from your comp.



Look under the front of your pass seat for a flashing red light (very small)



the flashes will be



example...

flash 1/2 sec pause flash 1/2 sec pause flash 2 second pause, flash 1/2 sec pause flash 1/2 sec pause flash 2 second pause...etc



that would be a code 3 and once all the codes are flashed it will repete over and over.

 

and in my opinion

i think with the pressure regulator and injectors it take 4th gear for
the oxygen sensor to get upset due to WAY to much fuel. and
tosses a excessive rich code.



? why the fuel regulater and bigger injectors?

or are you just missing the turbo that is going on next week?