92 F150 4.9 6cyl

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Have a 92 4.9 F150 that sputters and runs bad after getting to operating temperature.
I imagine the coolant temp switch or sensor is ok as temperture promotes the change from real smooth to rough.

Seams almost like it may be air related as I have a 96 that had similar symptoms and
was the mass air flow sensor.

If anyone has an unplug this or that system for narrowing it down the possiblities or have had the same problem I would sure apprecite the input and advice.

I have a code reader for my 96 but dont know if it is the one for a 92 or even if it is set up for a code reader. Again any input would be apreciated.

Will be getting a manual tommorrow but would sure like to get a head start tonight

Thanks, Dwayne