1993 jeep grand cherokee code problems

[landonsdad2511]

I've recently had trouble with my jeep and got it running again. Now my check engine light flashed code 12 which is PCM lost power. True I have unhooked the battery and changed PCM and that wasn't the problem so I put the old one back. Also the OBD 1 is throwing code 24. My throttle position sensor is reading above maximum voltage.
as far as driving the jeep it runs ok until I hit a small hill than I lose power. I with the pedal all the way to the floor it does maybe 10mph.

 

[landonsdad2511]

Does anyone know if this is a bad tps or could it be caused by something else?
Also could this be happening because I just put the PCM in?
I put the other PCM back in because when I fixed it last time it would crank and fire but shut off immediately. As soon as I put the other one back in it crank and stayed running.

 

[SteelHeadz]

Do you have a security system?. As far as the engine dying after it starts with the new PCM, it might have something to do with a security system or a programming issue or the lack thereof. As for the running part at 10mph , check the TPS voltage and sensor sweep to make sure there's no bad spots in the sensor and the voltage is correct.

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