1996 tahoe p0300

[Natedawwg]

I pulled plenum. Number 2 is leaking stuck open. Is it possible to buy 1 injector for the mpfi or i have to buy a whole new unit

 

[Schurkey]

You could contact whoever you bought the thing from, and see if there's replacement parts available.

Maybe even a local parts store would know.

Perhaps you can send the sticking injector to a specialist injector cleaner. Maybe they can solvent-clean the thing so it works again. (But would you ever trust it afterward?)

Good thing you didn't hydrolock that engine.

If I were you, I'd be certain to buy "Top Tier" fuel from now on. I also dump a 20-oz bottle of Techron Complete Fuel System Cleaner in the gas tank at every oil change.

 

[Natedawwg]

Thanks for all the replies, i always put good gas i mean its 87 but i either go to shell or mobil, i was able to buy just an injector ran fine for a few hours... now cyl 7 missfire smells like somethings on fire like oxygen rich burn and its got spark tested 7 1 2 wires and plugs with inline tester but i reset computer thinking is was just needed to be reset after all thag work and now im not getting cel at all but deffinatly a missfire

 

[Schurkey]

You've confirmed which cylinder is misfiring AFTER you "reset" the computer?

Shell/Mobil gasoline is probably "Top Tier", but I'd be looking for the "Top Tier" decal on the pump to verify.