1984 Other Chevrolet Models Fuel injectors not working

1984 CHEVROLET
67,000 MILES • V8 • 2WD • AUTOMATIC
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LBCTWKEN
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  • 1 POST
I have replaced the fuel pump and filters but no fuel comming out of injectors. I checked they have power going to them and fuel but wont spray. I have also changed the computer and the injectors and still not working. What could it be?
Dec 5, 2008 at 8:13 AM
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JAMES W.
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Your fuel injectors are feed with a constant 12 volts all the time with key "on". The ECM grounds the injector coil to make it fire. You can test injector pulse with a test light, but the best way is with a unit called a "noid light". These create a quick flash much the same as the bulb in an ignition timing light. Assuming you have good spark, injector pulse is what I'd check next. Please advise>
Dec 5, 2008 at 12:09 PM