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2 front 2 rear injectors not working

 
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Old 04-23-2011, 08:50 AM
crichf
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2 front 2 rear injectors not working

I have a 1992 Ford F-150, pushing 250,000 miles, V8 (302). Just recently the two front and two rear fuel injectors quit working. They are not getting signal to turn on. I'm guessing computer problems. Does this sound right, or could there be other issues?
 
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Old 04-23-2011, 08:56 AM
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Those four injectors are controlled by the same circuit from the computer, so it sounds like there is a break in the wire somewhere between the engine and the computer. To start with, I would check continuity between the injector(s) and the computer. If there is no continuity, the circuit is broken somewhere inbetween so you will have to trace the wire and fix the break. If there is good continuity to the computer, the problem could be the injector driver in the computer itself.
 
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Old 04-23-2011, 09:56 AM
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I agree it is most likely a wiring problem. Use this for reference:

Courtesy of FordFuelInjection.com
 
 
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