Air Pump to Cat 1991 Ford 460 Question
Couple years ago, plugged cat removed and replaced with pipe. Garage suggested remove the air pump as well. I said leave it in, thinking if I had to put a real cat back in, but fairly clueless on the...
Forum Discussion
If it's running good I wouldn't be too inclined to mess with it much as long as you don't have emission testing or inspections. It's pre-OBD2 so taking it to an auto parts store for a free code reading won't help. Checking the code involves some combination of jumping terminals and counting flashes- do some research on the internet on how to do this or get your hands on a repair manual.
