Out of Ideas!!

[mom_of_davian]

I just got a '92 S10 Blazer. I replaced the fuel pump, Dist cap & Rotor, spark plugs, Ign. coil and it still won't fire up. It will if you put a little gas in the injectors but then die. We've tried so much i probably forgot some of what we did. Anyone got any ideas?

[MT-2500]

You have gota have spark and the right fueo pressure and injector pulse.
Start with checking for good hot blue spark then check that fuel pressure and post back pressure and engine type and sise.
Can you here the fuel pump kick in on engine crank or key on prime up?
MT

[mom_of_davian]

The fuel pressure stays at about 11! I know it's gotta be between 9 and 13 and spark plugs are sparking. What else?

[MT-2500]

Ok if you have fuel pressure and spark.
Now what engine sise and what engine code the 8 digit in vin no.
Next is to chech for 12 volt power to injector /injectors depending on what engine and also check for injector pulse. Which can be done with a injector niod
light tester.
Post back what engine and if you have 12 volts power to injector and injector pulse.
MT

[MT-2500]

Ok if you have fuel pressure and spark.
Now what engine sise and what engine code the 8 digit in vin no.
Next is to chech for 12 volt power to injector /injectors depending on what engine and also check for injector pulse. Which can be done with a injector niod
light tester.
Post back what engine and if you have 12 volts power to injector and injector pulse.
MT

[Cam1959]

I have a 1983 carburated vacuum advance so no little about the newer fuel injectors. Could the injectors be dirty ? Is the a can of injector cleaner available to put in gas ? Otherwise may need good shop to determine problem.

[maxwedge]

There should be a visible fuel spray out of the 2 injectors as you crank the engine, if not check the fuses to start out with ,each inj. I believe, has it's own fuse. It gets more complicated after that.

[mom_of_davian]

The people who had this blazer before me messed with a lot and i think some of the wiring on the injectors is messed up as well. Each injector has 2 wires coming off of it and one injector is wired together and the other is wired seperate. I know that 2 wires need to be together but which ones?? The engine is a 4.3L TBI

[MT-2500]

Here is a link to the wiring in a pdf.
http://members.troublecodes.net/crunch/92S10B.pdf
Hope it helps.
MT