Question about 1991 Ford Escort

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What would cause all my fuel injectors to quit working?

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The cam sensor,or the crankshaft sensor,one or the other,spray starting fluid in the intake,if it starts,and keeps running,then it is the cam sensor,or pick up coil in distributor types,if it starts,and then dies,then it is the crankshaft sensor.If this was helpful,please rate,thank you.

Posted on Jul 04, 2010


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Changed timing chain on my 1989 K 1500 5.7 liter 350 4x4 Fixed Shortage in Battery Cable now fuel injectors spraying too much What Could Cause them to Spray Too Much Fuel?

The injector pulse is delivered to the injectors from the engine computer which works out the timing and duration of each pulse from pre-programmed values suitably modified by processed information from various sensors.

If any sensor becomes faulty the engine computer should record the fault and switch to a get-you-home emergency programme that mostly the engine finds quite adequate to start up and run reasonably well.

While it is possible the fuel pressure regulator isn't working causing a massive overpressure, or one or more of the injectors are faulty or if it is the type of injection system that uses a separate cold-start device that is faulty, it would be the height of coincidence - on the face of things, it would seem a strong possibility the engine management computer has been damaged during your electrical crisis.

I have encountered a couple of cars that for different reasons the battery became disconnected while the engine was running. The resulting power surge fortunately only destroyed the engine computer of one car but the other car had every electronic item destroyed, including the instrument voltage regulator and the radio.

Computers of all sorts are very vulnerable to power surges...

Mar 16, 2018 | Cars & Trucks

1 Answer

Engine quits running like it runs out of gas?

Many small things can cause this...dirty fuel, water in tank, fuel pressure regulator going bad, air filter clogged, throttle body dirty, clogged catalytic converter. First try fuel injector gas tank and line cleaner...least costly...use 2 bottles of STP concentrated injector cleaner...also add a bottle of liquid absorb any excess water or sludge in tank...worst cause could be low fuel pressure caused by bad fuel pump...Hope this helps.

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Your blazer has central fuel injection (CFI). You said you changed injectors, but your injector in inside the intake manifold, and only has one injector and a "spider" of nylon tubes from the central injector to each intake port. It is common for these spiders to break, causing fuel to leak into the inside of the manifold, and cause problems like you described. The spiders are available as reconditioned and are quite expensive,

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Car acts like its not getting fuel car cranks but

Sounds like the fuel pump may be intermittant...which unfortunately is located inside the fuel tank...there is a service port on the engine that allows you to test the pressure of the is located on the fuel rail that feeds the fuel injectors...this would be a good place to start....other possible problems with the fuel system are the fuel pressure regulator, fuel injectors, tps sensor, and possible but unlikely the PCM(computer)...A way to test the pump without tools would be to bang on the fuel tank and see if the problem ceases..if the pump starts working, then it is intermittant and I would suggest replacing as it may fail again...and quite possibly, when youre in a bad place or area

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1 Answer

Code P0171 light on when the car kia rio 2004 work in gas

P0171 is the code for "Fuel System Too Lean." Which means that there is too much air (and too little fuel) in the combustion chamber.

There are quite a few things that could cause this code:
- Faulty fuel delivery system (fuel pump)
- Clogged fuel injectors ($3 fuel injector cleaner might clear it up)
- Faulty fuel injectors
- Leak in intake or exhaust system
- Faulty Mass Air Flow Sensor
- Faulty Throttle Position Sensor

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My 2001 pontiac grand am all of a sudden quit running.went to start it wont start.changed spark plugs nothing.took off main fuel line right at fuel rail turned key gets plenty of gas.put carb cleaner in...

It depends on the # 1 ijector to fire then the rest follow,i u have test for injectors teat the 3 1 TO SEE WORKING PROPERLY,WHAT ELSE SOMETIMES ON GRANDAMS THE INGNITION SWITCH GOES OUT....

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a faulty injector or injector pump could be the cause

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96 Oldsmobile Bravada 4.3 liter

The fuel pressure regulator is located under the intake plenum attached to the six in one fuel injector.They leak quite often causing hard start conditions.The injector is also known as a spider injector which will come with the regulator .

Aug 01, 2009 | 1996 Oldsmobile Bravada

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