Question about Chevrolet S 10

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No fuel to the throttle body i have replaced the fuel pump, filter, and relay nothing even took a test light to the injector wires and they are fine as well as a new ground and checked my fuses. could it be my computer? why will my pump not turn on? can i reset my computer some how? 93 s10 2.8 5 speed

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  • Chevrolet Master
  • 2,002 Answers

It could be the power wire to the pump. Try running a power wire from the battery to the pump. It should turnm on for a few seconds and shut off until you start the truck. Hope this helps.

Posted on Aug 03, 2009

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Posted on Jan 02, 2017

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1 Answer

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Fuses first.
Then, disconnect the fuel line at the throttle body (unless there is a fuel pressure testing port) and see if there is fuel when you turn on the key.
If not, fuel pump, probably in tank. (assuming there isn't one on the side of the engine..)
If there IS fuel in the line, then the computer may not be engaging the injectors. Check for wiring issues on something that old. Maybe the main junction splice for power to the computer. (Not sure where on that one, sometimes it's in a dumb place, like near the battery and it gets corroded).

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