I think putting some premium in the rover got rid of all the cat codes..

Now this one is coming up..

I have no cats..P/O obviously removed them... Did a good job too..

I'm going to put the spacers in the rear O2 sensors and see if it goes away..


Is this going to cause an alternate fuel map to be used ?

I can live with the mil light on if this error won't affect the driveability till I get a chance to do the spacers...

Thanks

John

 

Your engine doesn't care about the cat, only the EPA does. Rear O2 sensors have no interaction with the engine. The front ones are the only ones that effect engine management. The back ones are only there to report on how well your cat is functioning.

 

Ir would seem the more I actually drive the truck the better it gets.. Drove it yesterday and didn't set any codes... I need to find some real premium without alcohol and see what that does...