PROBLEM Check engine light 92 ford explorer?

I'm having a problem with my off roader. The problem is when my check engine is that when the check engine light is on it brings up code for mas air flow sensor voltage is low. And code 998 hard fault. With key on engine runing. NOW FOR THE KICKER! I'll drive my explorer and the check engine light will go off and every thing gets bad messed up! The engine sounds like it's runing on 3 cylinders, has a hard time revving up, and runs half rpm's, and has trouble staying started. What would that be? Also my voltage is almost past normal like around 16 volts My guesses are it has a bad computer/PCM. Any help will be appreciated.

It must be going into limp mode.

I recommend taking your Ford Explorer to the nearest Ford Dealer to be diagnosed. Our certified technicians will be able to advise you of the next steps to reach a resolution.

Locate a dealer near you and set up an appointment with the link below:

http://owner.ford.com/...ateADealer

Enjoy the rest of your day!

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