1987 chevy s10 2.5l tbi will not start. changed bad fuel pump works well now strong pressure to throttle body. change fuel pressure switch, oil pressure switch, o2 sensor, map sensor, distrib cap, rotor, electric part on dustrib, check for 12v to fuel injector good, check ground good, fuses good, ecm swapped. truck will run if using starter fluid.

That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.

Did you push bleeder on top of fuel pressure switch to get air out and prime fuel line?

O2"Malibu crank but wont start just put new sensors on,the cam and crank sensors getting good fuel pressure dont know what else to do.What you think the problem could be any pointers. Thank u.

I have a problem with my chevy s10 it turns on and every thing but it watses to much gas and my check engine light is on .

Is the injector sprayin? have someone look while you turn the motor over, if it is it may be that the injector is sprayin to much fuel and flooding the engine,or the TBI is sucking air, theres a gasket the connects the top and bottom of the TBI that could be bad. my truck is doing the same thing, the only way it will run is if i hold the pedal to the floor to get more air inside the chamber, if i let off it chokes down and dies.

( does anyone know where i can find a 2barrel carb and intake to put on my 2.5l, i want to get rid of the TBI system)