WELL CHECK THIS OUT.... i just put a turbo xs intake, 660cc inj, walbro fuel pump, 3 inch tbe, 3 inch rally cat, boost and wideband gauges, and ebc, and finally i got my car tuned. but i keep getting a check engine light with a misfire code. is this because of my injectors and fuel pump upgrade......need help fast im just trippin over that frikin ligh. thanx... by the way my car runs great still

 

Odd that it would be a misfire code... I mean, 02 sensor I could see... Whats the code?

 

the code is p302

 

Id check my plugs and wires before anything else there...

 

but this only happened after i put my injectors. plus i have 8k on my engine

 

Interestingly low mileage. Though, I doubt the car is throwing that code just to screw with you, lol. If its misfiring, see if maybe the plugs are covered in oil, or maybe fuel as you put the new injectors in... Maybe one of the injectors isnt even firing.

 

thanks alot ill look into both things.

 

Who tuned it? and with what? what does your wideband read threw out the rpm band

 

it's most likely mal-tunning, Your injector is not firing properly. Make sure there well grounded, test each one individually. Check for fuel as well as pulse.

Gus

 

Im leaning on a lean AFR causing knock. Injectors are straight foward I mean in the Evo you dont need to splice the clips in them either so I would guess they possibly pooched the tune. AFR may tell the story