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1999 Chevrolet S-10 Base Reg Cab 108 WB Xtreme

1999 Chevrolet S-10
Trim Info:
Rear Wheel Drive, Reg Cab 6' Fleetside
23 mpg city / 29 mpg hwy
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June 17, 2013, 10:15 pm

Jeremy H
 

Question: No fuel from injectors

Ok have 95 4.3 s10 no fuel coming from injectors unless I take the purple/white wire coming from computer and arc from one coming from icm on distributer with switch on only way it will spray fuel so how do I fix that so it sprays normal the truck will start if primed but runs few sec then cuts off


June 19, 2013, 10:09 am

Richard W
Expert Mechanic

While the engine cranks it uses the distributor module to control the spark. Then when the car starts it switches to the computer to control spark. But the computer still need the rpm signal from the distributor to run. I would check all the power and grounds for the PCM. Also would test all the wires from the distributor to the PCM. If all of the test ok. You mite need a new computor.


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June 21, 2013, 11:02 pm

Jeremy H
 

Thanks I had the icm checked at auto zone it checked good I put new ignition module on that's wat I figured it was the computer when I install a used or new computer do I have to have the check engine light cleared or anything special done or just put computer in and go also would there be any kind of sensors keeping the injectors from spraying


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June 22, 2013, 5:55 pm

Richard W
Expert Mechanic

I didn't know Auto Zone could test icm. I use them all the time. The computer can just be put in. Inless you have theft system. You need to program the key to the computer. Auto Zone's web site have a free online manual that will show you how to program it. Make sure you program it before trying to start the engine. There is no sensor keeping the copmuter from spraying fuel.


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June 23, 2013, 4:14 am

Jeremy H
 

Ok thanks for your help I'm always trading cars so prob need ur help again


0/0 users found this helpful.

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