Guys, this is a link to an issue I'm having on my Z. I posted it in the computer diagnostic section, but it is probably a mechanical issue. As the title states I have split BLM's in all cells (108/120 at cruise, 130/160 on decel).
If you can think of a mechanical reason why one side of the car would be running that rich, please post it (either here or there). It is not an opti/exhaust leak issue. It motor, plugs, opti, fuel press reg, injectors have all been replaced (yup, it happened on my old motor, and has been happening on my 383 also).

http://web.camaross.com/forums/showt...hreadid=267121

Thanks.

 

Bringing it back up (24 hours later).

 

did this start after a cam install?

 

No, I don't believe that it did. I've been having this problem for a LONG time.

 

I would check you 02 sensors. Swap em and see if the BLMs swap.

 

Already tried new O2 sensors, no effect.