QuestionQUESTION: I recently Ran out of Gas and thought maybe the fuel pump burnt out. So I replace it with a oem factory fuel pump and change the spark plug. Had the ignition control module tested and it tested good. The Code that show in the computer are Po52 I052 To72 To77 T025 I am just not sure what to do now and what should be replace.
ANSWER: David,
Model and year please. If you spray carb cleaner or starter fluid into the intake while cranking the engine, does it start?
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QUESTION: It is a Cadillac deville 1995 4.9L I just bought a fuel pump relay today and the dealership. And it still not running. But for some reason when everytime I will disconnect the hose from the fuel pressure regulator is will run a little longer but later backfire and cut off but it does not leak from the fuel hose on the fuel pressure regulator
ANSWER: David,
As I asked before, does supplying fuel manually (carb cleaner or starting fluid) allow the engine to run?
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QUESTION: I have not tried starting fluid or carb cleaner but I will go try it in a couple minute to see
AnswerDavid,
The reason is that "IF" the manually-supplied fuel allows the engine to run, then we know it's simply a fuel control problem. At that point, you'll need to be able to verify whether the problem is lack of fuel to the injectors, or injector control itself but that really narrows down the potential root causes of the problem.
BE CAREFUL when using flammable liquids!!!!! DO NOT spray them into the engine unless it's cranking or running.
