Just purchased a 95 Astro w/180,000 on the odometer (motor supposedly rebuilt @120,000). It seems to run fine enough, and it is not throwing any codes. It has a tendency to die when coming up to a stop light or parking spot. It idles down real low and can't seem to rebound from it. I recently put new plugs/wires/pcv/air filter and changed the fluids in it. It has an exhaust leak at the muffler, but I can't imagine that being the culprit. It burns/leaks no oil, seems to have good power. Could this be a fuel filter? Or an Oxygen sensor or something along those lines? I can't seem to isolate the problem.
thanks
Shawn

 

Seems definitely like the fuel filter.