nathan_hebb

howdy everyone, new to the site, i have a 1989 k1500, reg cab short bed, tbi350 5 speed. i was crusin down the road one day and she shut off. wouldnt start back up. kept flooding its self out. since then, i have installed a new fuel pump and sending unit/w pump. throttle positioning sensor, coolant temp sensor, new fuel regulator. still way to much fuel. the only way it will even start, is if i unplug both injectors, turn it over an let it run for a sec, then plug one injector in at a time, it will start, then i can plug the other in, it will rev up wont idle, still flooding out. im starting to run out of ideas. any help is awesome!

Allan In NE

Try another regulator. That's the only thing that can let 'er overfuel.

Allan

nathan_hebb

ive tried three

Ronin1014

May sound stupid, but have you cleaned or replaced the throttle body it self?

Allan In NE

Have you changed the oil? Maybe it is filled with fuel?


Allan

nathan_hebb

yes ive completely rebuilt and cleaned the throttle body, and yes i have changed the oil, that wouldnt have anything to do with my problem because its pouring out of the injectors too fast

Ronin1014

Was the rebuild before or after this started?

nathan_hebb

everything was after it started doing it

steve242002

I'm having exact same issue. I've replaced the injectors, the fuel pump, the regulator, the forward temp sensor, tested the map and tps which are both good. Fuel psi is 11. Still won't start.... also new plugs, wires, cap, rotor, verified correct wire placement, verified spark, not sure what else to do.... also verified wire paths back to ecu.

Tmore12

did you guys ever figure out what is going on with your trucks? I have an 1988 that has the exact same problem. Done everything you guys have.
thanks!