Service Engine Soon light..

[slow98svt]

So I put my Offroad H-pipe on and I got the SES light of course.. So I go into the Predator and turn off the rear 02s and its good for about 15miles then I get another SES light and when I do diagnostics on it with the tuner it says no codes found :WTF: SES light with no codes?

 

[slow98svt]

No one? I'll see what the tuner says when I go down there after they pulleys go on..

 

[GetBitBiatch]

do you have MIL eliminators?

 

[slow98svt]

No I don't I thought you didn't need them if you had a tuner because you could turn off the rear 02 sensors or something like that

 

[AntiHeightPunk]

mil elims work good for cheap, call your tuner if u dont wanna buy them though

 

[Iron Fist]

I have the rear O2's turned off no MIL's, works fine. Just check with your tuner.

 

[MaximumVelocity]

AFAIK, the rear oxygen sensors can be turned off with a tune downloaded into the PCM, the handhelds just turn off/ reset the light/code. The PCM is still seeing the sensors....and the lack of cats.

 

[1QUICK10TH]

AFAIK, the rear oxygen sensors can be turned off with a tune downloaded into the PCM, the handhelds just turn off/ reset the light/code. The PCM is still seeing the sensors....and the lack of cats.

I think your mistaken, he has a handheld programmer which does download the deactivation of the rear o2's into the computer. i would definetly call diablo and ask them what the problem is, if you turned them off with the pred. that light should not be on.