I did a search but only found what the code meant...(Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system) I need to know what to check for just to be sure if it's the CAT or the secndary 02. If any of you have had this code please tell me what you guys did. TIA

 

i had the same code go off a couple of days after installing a carsound cat......how did i fix it??......re-installed my stock cat.

 

anybody else?

 

up^