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87 chevy four cylinder fuel injector wont spray

I cantget the fuel injector to spray?

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  • Cars & Trucks Master
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With the key on do the fuel injectors have one wire that shows (+) battery voltage of 12+ volts? If not check for a shorted engine wiring harness, also check all fuses marked "ECM" there should be two fo them. ECM 1 and ECM 2.

Posted on Nov 01, 2012

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  • Cars & Trucks Master
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If you getting steady light the ECM not firing the fuel injectors.

Posted on Nov 02, 2012

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SOURCE: cannot get 1987 chevy van 20 to keep running... stalls out

Best do a fuel pressure test. Should have chg. fuel filter from the get go. The only other filter is on the end of the fuel pump in tank. Bad gas and dirty gas will plug up fuel filter, hense burn pump up.

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SOURCE: cold start valve problem

if you have an electric cold start valve make sure to unplug it and if keeps apling fuel with electrical conector unpluged that means the valve is not good, but if not then you have an electronic problem, possible a bad cold start sensor or cold start module or cicuit problem, and might be a time to take it to an electrical shop

Posted on Jun 17, 2008

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SOURCE: misfire on #6 and #8 cylinder 1996 Dodge Ram 1500

Check the spark plug wiring . There are several places where the wires cross each other. These wire cross points MUST be at right angles to each other. Or you will have a misfiring problem.

Posted on Jul 07, 2009

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SOURCE: 92 chevy 1500 5.7 tbi starts and dies. replaced

Try using a good fuel line/injector cleaner Seafoam is a good one. If this does not help you may have tone or more clogged injectors. Clean these out and you should be good to go. tTo see Seafoam in action goto you tube type Seafoam into the search box.

Posted on Jul 08, 2009

fingaz22
  • 1068 Answers

SOURCE: on a 89 camaro iroc with tune port injection we

no not yet i wouldn't change the computr. check to see if there is voltage pos. at one or more of the injector lugs! if not then there is a fuse for them tht may be bad. first check fuse near battery it is in and black plastic cover boted to thefender if it istill mounted and someone didn't nbolt it. then ifthat 25 amp fuse is good checktheones under the dashand also a signif tht fuse nearthe fender is good or not is if the fuel pump is kicking onand the check engine ight work when the key is inthe on position. let me know if you have juice there atthe injectors and if so then iwould check the wire from thecomputer toinjectors if good then iwould say the computerisbad. but let me know and wecanwotk through it.i hve three of these cars i love them. good luck

Posted on Sep 27, 2009

Testimonial: "yes there is fuel getting to the rails and the computer i have already changed there is fire getting to the injectors both wires are hot when you turn"

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87chevys10 87 2.8L2wdautopickuptruck no spray from injectors no idea light doesn't light, replaced fuel pump , dist., iac,2ecms,fuel filter,will start and run briefly with gas poured in throttle


check the exhaust sounds like the catalytic converter or muffler maybe plugged. If you remove the 02 sensor ahead of them it should start and run rough. When they get plugged they will put back pressure on the engine and not allow the fuel to be drawn into the cylinders and fire.

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87 olds cutlass ciera 2.5 4 cylinder cranks no start the fuel injector not spraying but if I put gas in carb it starts but then dies anyone know whats wrong


I'd have to use a gage and check proper fuel pressure. Also, I'd have to check fuel injector pulse. The fuel injector needs voltage and ground.
If the computer doesn't see rpm signal, it won't ground the fuel injector. Sometimes the ignition module is at fault? There could be other issues? I hate to see you replace anything w/o testing.

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seems fuel related--pump and pressure regulator may be failing--a pressure test for residual fuel is needed. Go to an honest, independent or specialist. Injector driver could be going bad. It\'s in the computer. Get a obd 1 scan tool on it to read data as well as any codes

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The injectors can't be spraying good or it would start. What is the fuel pressure reading?

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Hi i have a 87 chevy k5 blazer with a 305 in it and im not getting any spray out of the injectors ive replaced the fuel pump the coil,fuel system relay and still nothing im out of ideas any help would be...


It could be the ignition module. The module sends a tach signal to the computer to fire the injectors. If the module fails and doesn't send the signal, the injectors won't fire.

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