DTC p0430

[03 Mustang gT]

my car just threw this code. i know it can be caused by having no cats, but then shouldnt it have been thrown for both sides?? i do have a really bad exhaust leak by the drivers side manifold flange so im thinking that could be why its only on one side. any advice?

 

[Brute03]

shouldn't have anything to do with the leak but you don't always get the code for both sides at the same time, hell, some people don't get a code for months after a o/r pipe install

 

[vandy0090]

shouldn't have anything to do with the leak but you don't always get the code for both sides at the same time, hell, some people don't get a code for months after a o/r pipe install

true true. i got it at first. it will go off for a few months. pop on and off from time to time.