Originally posted by Tony2005:
Originally posted by DavidC11:
..what that tell you is you need to change the cat convert. and O2 sensor the same time. I did clean up before on the cat, but it only last for a little bit. the best way is to change a new cat convert and O2 sensor so it won't trigger the CEL.the eliminator will work for few miles, but you still will trigger teh CEL either way. trust me, i been there.


With mileliminators (installed correctly), you will not get P0420 (Bank 1 Precat) and P0430 (Bank 2 Precat) codes.

The other codes have nothing to do with the Precats, unless your precats are plugged or main cat is plugged. You might then get a P0401 or P402 because of the cat problem.



the P0420 and P0430 is not Cat converter, those two code are intake manifold. things is that i clean my before and used eliminator too, still the same code still came out.