Truck won't stay running. Replaced most sensors already, finally checked voltage to the sensors, from PCM. No voltage going to TPS, or MAP Sensor. Haynes manual says I should have 5 volts to each with the ignition on, but I have nothing to these 2 sensors. My next guess is the PCM is spent. everything else checks out fine. Found a PCM that comes programmed according to my VIN#, from NAPA for $150, so it could be worse. Just want someone else's opinion. anybody got any ideas before I order the PCM?

 

Well, you could probe the wires at the PCM that send the voltage to the TPS & MAP sensors. That may be were I'd go next before coughin' up the $150...

I don't have my references with me at work, but I may be able to get you the cavity numbers on the PCM for the wires you need. Plus I'll take a look at the wiring diagrams to see if there is anything else in common with those sensors that you may be able to check.