1993 Ford Mustang Logo
Posted on Oct 13, 2010
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93 mustang lx turns over but won't start, has new fuel filter, fuel pump, battery, oil filter, air filter, spark plugs, coil ignition modules, and spark plug wires. im thinking the wires were put in wrong vut not sure. anyone have a diagram to check if their in right?

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  • Expert 36 Answers
  • Posted on Oct 13, 2010
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I suggest you check for spark by taking a spark plug wire off one of the spark plugs and using one of your old plugs and crank it over and see, it wouldn't be the first time a module died on a Ford. Plus if you have a fuel pressure tester hook it up and check for proper pressure if no gauge just shoot a couple of squirts of engine start or carb spray in the intake if it starts something wrong with your fuel system recheck wiring conections if you don't hear fuel pump, turn on key from 3 to 5 seconds fuel pump should run to prime fuel rail then stop, if not check fuel system.

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  • Ford Master 8,991 Answers
  • Posted on Oct 13, 2010
Jeffrey Turcotte
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If this doesn't do it, see my tip at http://www.fixya.com/cars/r5821173-doesnt_car_start_gasoline_engines . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me


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Your testing so far seems to exonerate components #1 to #5, and #13.
Since you've already replaced a number of parts to address the problem, I thought I should try to be comprehensive:

Priority Action Part Type Cause
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2 Inspect Battery - Battery Discharged or Faulty.
3 Inspect Battery Cable - Coroded, Broken, Shorted or Poorly Connected Battery Cable.
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6 Inspect Wireset - Worn or Damaged Spark Plug Wires.
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15 Inspect Fuel Injector -- Dirty or Worn Fuel Injectors.
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