I have a 92 chevy blazer vortec will turn over but have no fire to the injector plug on top of the intake

Bill Shadell

Asked by Nov 07, 2014 at 08:29 AM about the 1992 Chevrolet S-10 Blazer

Question type: Maintenance & Repair

8 Answers

Andrew Olsen

The injector is inside the intake of the 92 4.3 vortec. There is a component on the top known as a tuning valve with a 2 wire connector. That isn't an injector

1 out of 1 people think this is helpful.
Bill Shadell

Ok but the plug with the two wires that go into the intake cover i have no fire to that plug

Andrew Olsen

The red and blue wires? Are you testing with a noid light?

Bill Shadell

No a meter

Andrew Olsen

The injectors pulse. I don't belive you can read them with a voltmeter. Do you have spark and fuel pressure?

Bill Shadell

Yes have spark and fuel pressure it will start if they take the pvc hose and put it in a bottle of gas

Andrew Olsen

How much fuel pressure do you have? The injectors won't work under 50psi

Bill Shadell

Ok ill have him check

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