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What is your question?
tps had only 3.5 volts mass air flow has 5 coolant senseor has 5 volts i traced the blue wire from the tps to a box under the coolant recovery tank inside the air filter bos the wire only has 3.5 volts is ths the pcm,i was told the pcm was inside the car the service # on this box is 12583827 is this the pcm?
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yes, that sounds like your PCM location and number. But what is making you think it is the PCM ? many of the sensors do receive a 5 volt reference signal from the PCM but not all. Your TPS sould be only reading about 1 volt when trottle is closed and increase to 5.0 volts when wide open. If you are getting 3.5 when closed I would be sure throttle vavle is clean and closing all the way. If so replace the TPS first.