Question about 1994 Chevrolet S-10 Blazer
Has new plugs, new fuel pump, new fuel filter, new distributor module, new map sensor, injector, fuel pressure regulator, and a new rubber fuel line that goes to the pump. It has had some electrical issues in the past but the last time (before the rubber line was replaced) I had the fuel pressure checked it only read 30psi
this is all i could find,go tot this forum and see if it helps you out.
94 Chevy S10 Will Turn Over But Will Not Start
or this one.
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1994 chevy s10 blazer turns over won start Google Search
Posted on Nov 25, 2017
SOURCE: have a 1994 chevy s10
You need to check and make sure you have fuel pressure, then check for spark at ignition, if those check out then check for pulse width at the injectors. That basically is the electrical signal which tells injectors to spray fuel. Use what is called a Noid light on injector pulse width check. that will eliminate all possibilities other than internal issues with engine. I.E. broken cam, broken timing components, obviously if all I mentioned checks out then run compression test. Good Luck
Posted on Jul 15, 2008
SOURCE: 1999 chevy blazer fuel problem
probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold
Posted on Nov 30, 2008
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.
Posted on Jul 17, 2009
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