This evening I found the settings for the front and rear O2 sensor bias. Now by adjusting the acceptable difference between the front and rear O2 signals in the rom I can stop it from throwing a cat inefficiency code. On the downside I've never advocated removing one's Cat. I for one do care what air pollution I leave my children. I'm not sure I want to allow for complete removal of a cat.

-Michael

 

Congratulations but this was addressed 2 years ago...

-E

 

On the 4G69 equipped ralliart? AFAIK I'm the only one able to do a reflash and it's been maybe a month since I've managed to reflash the first one. Nearly every turbo/piggyback equipped ralliart I've worked on suffers from this CEL problem.

-Michael

 

You can always use a cel eliminator but if the ecu will do it for you.....