Ive read the posts on the different stalling problems...and don't know what else to check

I recently had the cats replaced - i bought them and had a local exhaust guy put them on for me. Ever since he did that the car stalls out - after its been running for 10 or so minutes (weather/temperature depending). Its not overheating per the temp gauge.

Does anyone know what the exhaust dude left off or changed that may be causing the stalling??? I can't find the problem.

Thanks

Julian

 

Is the air pump still hooked up? If not, the cat is dead already (most likely). Will it restart after it dies?

 

The air pump is still there - is there a way to tell if its working correctly?

It will restart after it cools a little - its about 30 degrees here and it has to cool down for about 5-8 minutes. But after it gets going it just shuts down again.

 

Fuel filter is the first place to look, for any stalling problem.