1. Lovejoy302

    Lovejoy302 New Member

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    my 89 5.0 will not go full throttle. Throttle Body is clean enough to open up just wont go past about 2500 rpm. Need some advise on how to fix it cuz i need the speed. Any help works!
     
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  2. madspeed

    madspeed Colonel Mustard
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    pull codes!
     
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  3. Lovejoy302

    Lovejoy302 New Member

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  4. mikestang63

    mikestang63 Mustang Master

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    run the codes on the car. That should be your first step in diagnosis. Go to the tech archive. All you need is a paper clip and if your car is before 89 a test light. You will run both key on engine off and key on engine running tests.

    It could be a host of different issues . The computer will store any codes and tell you what is not functioning properly.
     
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  5. Lovejoy302

    Lovejoy302 New Member

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    Same test advanced or an auto store can do pretty much
     
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  6. madspeed

    madspeed Colonel Mustard
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  7. Lovejoy302

    Lovejoy302 New Member

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    Okay thanks. From your experience does it sound like exhaust is clogged?
     
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  8. madspeed

    madspeed Colonel Mustard
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    Not likely even if you still have the factory cats on it, but you would smell rotten eggs if it was
     
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  9. Lovejoy302

    Lovejoy302 New Member

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    Smells weird for sure and only have 2 front cats that are factory no back cats
     
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  10. madspeed

    madspeed Colonel Mustard
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    pull the codes. It will tell you if there's an oxygen sensor issue due to clogged cats
     
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  11. Lovejoy302

    Lovejoy302 New Member

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    Will do thanks again.
     
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