Throttle body injectors are giving too much gas?

1989 CHEVROLET S-10
230,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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5150JNB
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  • 4 POSTS
Truck starts and runs fine for the first 15 to 20 minutes and then floods out if I disconnect one injector it will crank back up and run.
Jan 5, 2023 at 1:11 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,256 POSTS
So, what happens is the fuel injector can short out causing the PCM to turn the injector on full blast, I would disconnect the injector and use an OHM's meter to check the windings, this guide can help:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

The other options are the PCM injector driver is shorting out or you have a bad ground for the computer. Let us know what happens and please upload pictures or videos of the problem.
Jan 6, 2023 at 4:23 AM
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