i have gutted cats on my car...i did have a diablo programmer but i took it off and now my light came on.....woudl that be because of the gutted cats...i do not have mil eliminators or anything......is this the reason my Service engine light is on?

 

I would have to say yes. If you still have the predator can't you pull the check engine code? If not take it to Advance Auto or Auto Zone and have the code pulled for free

I just noticed you sold your tuner in another thread

 

Yea that is the most apparent reason. You could of turned off the sensors with your tuner, but now I would say to look into some MIL's.

 

why did you get rid of the tuner? upgrade or something??

George

 

umm..well i suppose if you hadnt sold me that programer it wouldnt have been a problem kid...now your rear 02's are pickin up on the ineffienciency of ur cats and settin a DTC causing ur ses light to come on. And by the way...that programer sux dude..i think it runs better without it..lol the only thing its good for is calibrating speed o meters. But even without the programer you dont want none! HA

 

yes, its because your cats are gone. Get some MIL eliminators and you should be fine.

 

+1

 

I'm willing to bet if you get the code pulled it'll say: Engine running lean, Second bank, meaning your secondary o2s are causeing the light to come on. Im in your position right now so i ordered some steeda mil elims that should be in on friday. Without the tune or the Mil elems you might also notice that your car dies easier, especially when it's cold in the morning.

hope this helps