CAR Runs great but "CHECK" light is on...?

[w00t_Masta]

The check light is on, but i can't remember if it's always been since i bought it or what... I checked oil-good, sparks-good, runs well. But i like many others have the problem w/the Battery/Brake light being buggy as hell...

[TrueSlide]

have you tried your oxygen sensor??

[Nismo_Freak]

I guarantee you its an 02 sensor... look for a code 33 on your ECU read-out.

33 If I remember right...

[GodDrivesA240sx]

your cat's prob rotted away and the 02 sensor is sending a bad signal to the ecu. That is if you are 95 and up

(yeah pretty much what those guys said. however, chalk up another post for me)

[w00t_Masta]

Well, My car is a 93... and i have no clue about the "read-out" on my ECU. If it is my O2 sensor, do i jsut need a new one.. or is there a fuse for it or somethin?

[TrueSlide]

just buy a new o2 sensor from like advance auto, get the universal its like 17.99, should be the fix, im 99.9% sure thats your problem

[UncleBen]

where is the o2 sensor located.

[TrueSlide]

It should be located on the exhaust manifold.

[nautybynature]

oh and if you cut a knuckle while fixing your car, heat up the engine and cauterize your knuckle on the manifold - stops the bleeding. no shat.

just playen

[w00t_Masta]

Well i posted about the ECU shiat on the Technical part of the forums. And i finally know wtf is going on. So i'll check the ECU and prolly just replace the sensor like Truslide said. Prolly the reason why i am runnin lean.. i think it's lean anyway.. My sparks are pretty new and aren't as white as they should be. You guys are rad. You make workin on my car myself 100000000x easier.

[Nis240sanSX]

In my area, if your check engine light is on, they will check your ecu and tell you what the problem is for FREE, they probably do it everywhere, you should check.