C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel Injectors not working

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Old Aug 29, 2012 | 09:02 AM
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Default Fuel Injectors not working

Can't start my '93 because my fuel injectors do not seem to be working. I have spark and the fuel pressure at the fuel rails is fine.
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Old Aug 29, 2012 | 07:18 PM
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Did you check you fuse box.....there are fuses for the injectors.
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Old Aug 30, 2012 | 08:50 AM
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I tested all fuel injectors with a test light and they are all pulsing. However, fuel is not getting through. The car sat for a long time. Is it possible that they are all blocked? The car will run for a few seconds when I spray carb cleaner into the throttle body.
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Old Aug 30, 2012 | 11:07 PM
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Originally Posted by sante65
I tested all fuel injectors with a test light and they are all pulsing. However, fuel is not getting through. The car sat for a long time. Is it possible that they are all blocked? The car will run for a few seconds when I spray carb cleaner into the throttle body.
It is possible, ohm test the injectors as well, should be around 12 or so. Next step would to to pull the rails, place over bucket and crank the engine. See if they spray.

Can you hear them click on and off when cranking engine?
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Old Sep 8, 2012 | 05:02 PM
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haveing same promplm ch all injectors with a 9 volt batery they click but no run unless i use carb spray
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