As anyone experience any check engine light,with k2 mods? After about 20 miles it appeared,cleared it but it returns again.......codes reads CATS problem.Withstanding all that the car rocks.
The Mustang Cobra that i ran dont have a clue as to which way i went........i ran outta site of him.

 

they probably didin't make the ECU adj. for the 2 less cat's & o2 sensor.

 

Join the club, mine is still on after 5 program revisions. Hope the next one will fix it.

 

Guys: usually a cat removal issue as the sensors are looking for them-Joker

 

Shouldn't have that problem, Cory can adjust for the headers. Tony007 are you using Kleemann products?

 

What's the code number?

 

Happened to my car about 30 miles after I got the K2 mods done. Car was a beast. Got the revised ECU and the light went off but so did my power. Going to get it Dynod this week and see if another revision is in order.