Thanks for all the info and ideas.

2000 Chevy S10 4.3 "W" AT RWD My personal vehicle.

Fuel pressure is 60 psi key on, and 55-60 at idle, doesn't drop under load. I've checked for vac leaks, total trims are + 10 to +17 , I'll check again. O2 senors do respon... Login to read more.