Question about 1994 Chevrolet S-10

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Fuel injectors won't pump

S10 fuel injector won't work unless hot wire attached

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My 1995 Chevy s10 3.5 tbi won't spray fuel to the tbi, won't start and I redone all the ground wires but it still isn't grounded wats my problem


I can find no s10 with 3.5L engine? If you swapped engines, I'm afraid I can't help you?
I can talk to you about the basics. The fuel injector voltage circuit usually goes hot with the key on. The computer grounds the fuel injector ground circuit. engine cranking, if computer doesn't see rpm signal or there is a problem with security system, where applicable, the computer won't ground the fuel injector.

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No fuel spray from injectos


1986 chevy s10 2.5l no gas coming from injector. - S-10 Forum

www.s10forum.com/.../1986-chevy-s10-2-5l-no-gas-coming-from-inject...
Sep 2, 2009 - 24 posts - ‎7 authors I have no gas coming from my injector it a 1986 chevy s10 2.5l I have replaced the fuel pump,oil pressure switch & I checked and oil would ...

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What would cause a 1991 s10 to not start back up


Replace the fuel filter,could be dirty fuel injectors.Check air filter.Also could be a clogged catalytic converter. Bad Fuel pump relay.Your fuel lines could be clogged,blow them out with a air compressor.Maybe try blowing it out first,cost nothing and may be the problem.

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1 Answer

4.3 V6 in 1993 S10 blazer I'm getting fuel to fuel rail but not to injectors. I've replaced the fuel spider but still won't start unless u squirt gas into throttle body


As the injectors are connected to the fuel rail but you are not getting fuel out of the injectors then the problem be with the electronic control of the injectors (immobiliser-cam/crank position sensors-ECM-wiring). Unless you got bad fuel or used a cleaner that has blocked up the tips of the injectors.

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My 1990 Chevy s10 pk fuel injector won't work


There should be a fuse for the injector circuit. Did you check that?

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Ok on my 98 Chevy s10 I've pin pointed down to the


If you can make the injector click without cranking the engine, the injector ground circuit is bad, probably the computer.
If the injector only clicks when cranking, the ground circuit is working right, so the problem is with the injector drive circuit. There should be a fuse for the injectors in the power distribution box by the battery. Have you checked for that? Also check for power to the fuse with key on. Use a testlight or voltmeter to check for power.

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You first need to run a fault code test on this engine, to do that go here.

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1987 Chevy S10 TBI 4cyl 2.5 L will not run. I changed a weak fuel pump and i am now getting good pressure. I swapped ecm's, changed fuel pressure switch, oil pressure switch, distrib, rotor, electronic...


Check the injector for 12v on one wire. if good check the other wire for a ground witth the key on. The ground wire pulses from the ECM If you dont have 12v from one wire to the other but you have 12v from one wire to battery ground then be sure the ground wire is good to the computer. If you don't have 12 v at any time check for open hot wire or bad fuse. ADD 12v to the hot wire at the injector. DO NOT add to the wrong wire or you will fry the computer

Jul 15, 2009 | 1987 Chevrolet S-10 Pickup

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