Ok, yesterday driving home i noticed my check engine light came on. These are the codes it threw.

P0420 - Catylsit System effciency below threshold (bank 1)

P0430 - I dont no what this code is?? Does anybody ??????

But i do have a o.r x pipe that i intalled a month ago. Why would it wait so long to throw thses codes????

Anwyas does this just mean it dosent reconize cats??

 

do you have mil's or a tuner to turn off the rear o2's???

 

P0430....Catalyst System Efficiency Below Threshold (Bank 2)


heres a code site


http://www.aa1car.com/trouble-codes/

 

thanks.. and no i dont have mil eliminators. But i caan turn off my rear 02s. Its thrwowing it becasue theres no cats right?

 

its throwing codes because of the rear 02 are picking up more unburnt fumes than there should be because of the lack of cats.try turning off the rear o2's and clear the codes that should fix your problem.

 

ok will do.. thanks