The injectors on my 1990 s10 blazer spit gas after the engine is off and it runs rough.?

Answer 1

you need to replace the o rings on your injectors and also make sure your fuel rail is bolted down tight enough, this may help it to run smoother if not, try a good tune-up, plugs, cap,rotor button and wires should do the trick.

Answer 2

Sounds like the timing has jumped, have it checked out besides that the only other thing that it could be is a programing malfunction in the onboard computer. Good luck