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Fuel injectors will not fire - S 10 Chevrolet Cars & Trucks

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Are ECM fuses 1 & 2 ok? no blown?

Posted on Jun 19, 2009

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I have an 1987 Chevy with throttle body fuel enjection I have a new fuel pump and new fuel filter I have fuel coming up at the throttle body when I crack the lines but the injectors arnt spraying fuel


I suggest changing the pickup in the distributor. This is what fires the injectors. If you have a noid light you can check for pulse at the injector, but my guess is there is nothing signaling the injector to fire.

Feb 10, 2016 | Cars & Trucks

1 Answer

3 rear cylinders not firing


Check the grounds from the rear injectors to the computer. On a bank fired system as yours, all 3 injector grounds on each bank splice together before they go into the computer. Check wire continuity from injector to the computer connector with the ohmmeter.

Jul 21, 2014 | 1989 Oldsmobile Cutlass Ciera

2 Answers

Why would a cylender not fire if the plug has spark and all other cylenders are firing?


What test told you it is not firing?

You may have valve damage &
little compression

Jan 09, 2013 | Cars & Trucks

1 Answer

Fuel injusctors not firing


The injectore do not fire they simply open and squirt fuel. check the fuse for the fuel pump and fuel pump relay before we go any furthur

Jun 01, 2012 | 1990 Buick Regal

1 Answer

What causes injector not firing gas?


FUEL INJECTOR NOT FIRING COULD BE FAULTY FUEL INJECTOR.HOOK A NOID TEST LIGHT TO FUEL INJECTOR ELECTRICAL CONNECTOR. CRANK THE ENGINE WATCH THE NOID TEST LIGHT SHOULD BE BLINKING WHILE ENGINE TURN OVER.IF TEST NOID LIGHT STEADY PCM FAULTY NOT FIRING THE FUEL INJECTOR.IF FUEL INJECTOR DONT BLINK OR LIGHT UP.YOU HAVE OPEN WIRING CIRCUIT TO THE FUEL INJECTOR CONNECTOR.

May 13, 2011 | 1990 Geo Tracker

2 Answers

Where is the fuel injector located and how hard to replace. 2002 cadillac Deville. nodakplayer@yahoo.com


It's not that difficult to replace. You should be able to get any diagram you'll need, as well as a lot more useful information by registering for free at www.autozone.com Registration gives you free access to repair manuals and some shop manuals, most with sections that can be downloaded and printed.

Apr 20, 2011 | 2002 Cadillac Deville

1 Answer

Getting fuel to throttle body, but, car will not start. Fuel injected system. Injecters are not firing. Starts when gas is poured in throttle body then dies. What's my problem?


Sometimes there is a fuse just for the injectors if none of the injectors are firing id check the fuse.
But first check to see if the fuel injectors click because if they do click it could be the fuel pump.
Are you able to figure out what the fuel pressre is at when you prime the system? You can do this by checking the schrader valve on the fuel rail by plugging in a gauge and see if it has pressure when you turn the key.
if the injectors dont click and you have fuel pressure check the fuse for the fuel injector system (depending on model fuel injector system.) Cause you need to first make sure the fuel injectors arent firing cause it may be a pressure regulator problem or a fuel pump.
if you need further assistance or have a question about anything ive said please follow up with a comment and i will be glad to assist you further from there. Thanks and good luck.

Aug 26, 2010 | 1985 Cadillac Eldorado

1 Answer

Injectors s10 1991 .the injectors wont spray they have electricyty on the wire on the injectors fuelpomp works have fuel in line .its just the injectors wont sent inpuls.


So your saying fuel pump giving you pressure but ALL injectors are not firing. IF ALL INJECTORS ARE NOT FIRING AND FUEL PUMP IS A-OK THEN ECU IS THE PROBLEM.
However, if a few are not firing then its probably those injectors.

Jun 14, 2010 | 1991 Chevrolet S-10

1 Answer

My injector dont work and i need to know why


CHECK FUEL PUMP AND FUEL INJECTOR FUSE.IF FUSE IS GOOD.YOU NEED A NOID LIGHT TO CHECK TO SEE IF INJECTORS FIRING.YOU CAN BUY A NOID LIGHT AT ANY AUTO PARTS PLACES.WHAT YOU DO DISCONNECT FUEL INJECTOR CONNECTOR.HOOK NOID LIGHT TO CONNECTOR.CRANK ENGINE TO SEE IF NOID LIGHT BLINKS.IF YES INJECTORS FIRING.IF YOU GET STEADY LIGHT.PCM NOT WORKING NOT FIRING INJECTORS.IF YOU GET NO POWER OR LIGHT DONT WORK.YOU HAVE A WIRING PROBLEM.YOU NEED A HAYNES REPAIR MANUAL LOOK AT THE ELECTRICAL WIRE DIAGRAM.TO TRACE FAULTY WIRE.

Mar 21, 2010 | 1989 Chevrolet G10

3 Answers

Good spark -- fuel supply line has fuel -- will not start -- either sprayed into air intake -- car immediately fires -- why are cylinders not getting fuel?


possibly a bad pressure regulator or injector module not letting the injectors fire. check out both more than likely the injectors are not firing.

Aug 30, 2009 | 1989 Buick Riviera

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