Fuel - Injector sprayin way too much fuel. 88 Escort GL | Ford Escort Owners Association (FEOA)
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Fuel Injector sprayin way too much fuel. 88 Escort GL

Discussion in '1st Gen 1981-1990 CVH' started by Dibola, Jul 12, 2014.

  1. Dibola

    Dibola 88 4 Door Escort GL Owner

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    Well, I replaced a bad fuel pump,fuel filter, connected new pump and filter. When I turn the ignition on, but not start the engine, it'll spew gas from the injector. When I do crank it over it'll spew way too much and flood the carb. We've all seen how injectors work, I knew the amount was way too much. What do you guys think the problem is? Btw every part unless stated is orig stock...from and labeled by ol Ford itself. Never has been changed. Someone even suggested timing belt problems, or that the timing might had slipped. I did notice though that when I tapped the injector with a wrench, not hard, and I noticed fuel leak from where plastic meets metal and run down its side.

    This is the fuel pump I'm using btw,
    http://www.autopartswarehouse.com/s...uel_Pump/1988/GL/4_Cyl_1-dot-9L/AFE2082S.html
  2. 87GL

    87GL FEOA Member

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    My 87 GL once had a similar problem at about 250,000 miles. It would start normally for about 10 seconds then would die. Watching the injector, I would see it spraying a continuous stream of fuel just before it died instead of the usual of the pulsed stream. I attached an oscilloscope to the injector terminals to see if the ECU was telling it to do that and it was not. So I replaced the injector and the problem went away. I suppose it was sticking open. I had tried so called injector cleaners in the gas tank first, but they didn't help. Anyway, I hope this helps.
  3. marshpoprock

    marshpoprock FEOA Member

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    I didn't have any luck when I used an Airtex pump myself. I just replaced a fuel pump on another car using a nos Ford assembly from e-bay for 50 dollars.

    How's the diaphragm inside the fuel regulator? If you think you're getting to much fuel, might be a fuel regulator issue if you consider the new parts creating higher pressure than it can regulate correctly.
  4. Dibola

    Dibola 88 4 Door Escort GL Owner

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    You know, I didn't think about checking the regulator. It probably wouldn't hurt to go ahead and replace it and the injector. If replacing those two doesn't solve the excessive gas flow, what should I do or be looking at?
  5. marshpoprock

    marshpoprock FEOA Member

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    try pulling codes out of the ecu. something may be telling the computer the air/fuel mix is lean.
  6. l.o. guvna

    l.o. guvna FEOA Member

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    dib,

    i had the same problem, with the same work, replacing the fuel system from tank to injector. when I replaced the injector, I forgot to replace the gasket/ring inside the injector housing. make sure thats not still in the box, or on the work table, where mine was.

    LO
  7. Dibola

    Dibola 88 4 Door Escort GL Owner

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    I done some research and investigation. Apparently the orig Ford Mini injector is bad so I'm replacing. I also realized that it's because of the new fuel pump too. It's places 30-36 psi when the old stock pump on it produced around 16psi and below and the pressure regulator all though stock and still ok cannot handle the extra pressure of a newer pump. So I'm buying one that supports up to 45psi.

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