[RIDEHARD808]

Please someone anyone have a solution. I’ve changed fuel pump, fuel filter, and spider injector all within three days. So now here’s the kicker it still doesn’t run. Put some gas down the throttle body and she starts up keep up the starter fluid and it keeps running stop and it dies out again. I need help badly. Yes I’ve done the basics of checking pressures and air filters cleaning the intake manifold. It died out on me previously to changing the fuel filter and sided injectors. Fuel pump is maybe 4 months old at most. Please help me not hate these trucks anymore.

 

[crazy_ate]

Please someone anyone have a solution. I’ve changed fuel pump, fuel filter, and spider injector all within three days. So now here’s the kicker it still doesn’t run. Put some gas down the throttle body and she starts up keep up the starter fluid and it keeps running stop and it dies out again. I need help badly. Yes I’ve done the basics of checking pressures and air filters cleaning the intake manifold. It died out on me previously to changing the fuel filter and sided injectors. Fuel pump is maybe 4 months old at most. Please help me not hate these trucks anymore.

Do you mean it "doesn't run" or "doesn't start"?

• Fuel
• Air
• Spark

Sounds like you have some fuel work still to do. Can you hear the fuel pump prime when you turn the key on (but do not start)?

Does the truck have any sort of "rollover fuel shutoff" switch? If so, did you confirm not set & properly working?

 

[Recklessabandon]

You mentioned checking fuel pressure. How much do you have? You'll either have insufficient pressure or no injector pulse.

 

[RIDEHARD808]

Do you mean it "doesn't run" or "doesn't start"?

• Fuel
• Air
• Spark

Sounds like you have some fuel work still to do. Can you hear the fuel pump prime when you turn the key on (but do not start)?

Does the truck have any sort of "rollover fuel shutoff" switch? If so, did you confirm not set & properly working?

So it doesn’t start. Basically it will crank and crank if I push the gas pedal enough times it might turn over rev for a split second and die out. But it doesn’t hold idle at all and just turn key only cranks.

 

[RIDEHARD808]

You mentioned checking fuel pressure. How much do you have? You'll either have insufficient pressure or no injector pulse.

So previous pressure was 58psi which I figured no big deal 2 psi under. I hate to ask stupid questions but what is an injector pulse. Brand new spider injector still doesn’t seem to want to turn over. Just continuous cranking.

 

[crazy_ate]

Time to break out the scan tool

 

[Recklessabandon]

So previous pressure was 58psi which I figured no big deal 2 psi under. I hate to ask stupid questions but what is an injector pulse. Brand new spider injector still doesn’t seem to want to turn over. Just continuous cranking.

The pulse is what turns the injectors on and off. You'll have to check it with a test light or noid light. Without pulse you can change the injectors a thousand times and non of them will work.

 

[crazy_ate]

no pulse at fuel injector cpi 92 s10

I have a problem I can't figure out. Vehicle cranks fine, got spark, steady 62 psi fuel pressure, runs if fuel sprayed into intake. There was no power to injector bought new pcm, new distributor, new coil, map sensor and fuel spider and nut ii r no brakes in wiring. Still o pulse at spider...

www.s10forum.com

"Well I found out a new in tank pump is not always a good pump, took it to chevy they said fuel pump not always reaching 60 psi they changed it runs runs great
Thank all who offered assistance with this"

 

[flopshot]

go easy with the starting fluid, not the best thing to shoot down the manifold.