Question about 2002 Ford Mustang

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Ever since I added octane booster to my fuel tank on accident, the car seems to want to stall in reverse and in drive, trying to get up to speed it feels like it wants to stall and hesitates. I replaced my plugs and wires and fuel filter and still the same issue?

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Adding an octane booster will not cause this issue. They are designed to go into the tank. You need to check and see if the computer has any stored codes. Best guess at this point in time are cloged catalytic convertors, bad mass air flow sensor, bad map sensor, bad egr.

Posted on Mar 26, 2011

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  • fsumustang81 Mar 26, 2011

    I am going to hook up the computer and try to see if there are any codes, but the check engine light is not on? The fuel filter was pretty dirty and nasty when I drained it. You don't think it would just be the pump.

  • superponty Mar 26, 2011

    It is possible for the fuel pump to be going bad. If it has low pressure the vehcile can start but have troubles maintaining idol. That is not the average way for a pump to go bad but it does happen.

  • superponty Mar 26, 2011

    All the light had to do was flash for it to store a code if it is a sensor. A fuel pump will have no codes on most vehciles. On some it will pop a code for low fuel pressure.

  • fsumustang81 Mar 27, 2011

    another thing that is kind of worrying me is it idling a little weird. Sitting at a stop light or something it will just creep up in RPM and then come down to normal. Would that symptom be the same issue, or maybe something different? Thanks a lot for your help.


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Full pump i had it once in my 2005 GT !!

Posted on Feb 02, 2014


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