sloooow

I swapped the off road h pipe for a catted h pipe on my fox & now the car stalls when idling. It doesn't stall every time, but it has quite a few times and we're not even 24 hrs since the swap. What couldbe the issue? My guess is clogged cats maybe.

punisher91279

Does it idle okay when it does? If not get a socket and adjust your air idle screw, located under your throtle body. If you adjust it only turn half a turn or do it while its idling.

sloooow

When it's not stalling ottrying to stall, it idles fine

Tony71502

did u put stock h pipe w/ cats back on there? theres no reason for new cats to be clogged. Maybe u messed up your 02 sensors.

sloooow

i bought the pipe used so my guess is bad cats. my o2s are fine