1fast 99gt

I have an catless h pipe and no mil's things and my check engnine dossent come on?

sunguf

nothing wrong with that either have mine, some do some don't but they will sooner or later

1fast 99gt

thats why i dont drive it unless its nice out untill i sell my other car.

sprostang

Why not just get the mil`s??

keeno

How many miles have you put on it since the swap? Mine took about 3 days of driving before it came on.

99GTvert

mil's generally go out eventually, whether it takes a month or a year or two. I would just get a tuner and turn off the o2 censors in the rear.

Nitti00GT

Yeah it took me a couple days too before my MIL came on when I got my o/r H. Then I got it turned off and my front O2s went bad a month later lol. I took it to get looked at at a Ford dealership and they guy told me to come take a look and the front O2s where extended with house wiring and solder conections. Totally off subject sorry.

1fast 99gt

i put about 10 miles on it mybe. It sucks because i dont know how fast it is. Just drive it around the block.[:'(]

sprostang

Get out and stomp on it!!!

99shadowGT

ya it's weird, i just got my o/r x on yesterday, the light doesn't come on during the day, but at night the light comes on, i guess because it's cooler, the air is less dense and the car really has a chance to breathe? who knows