Quote:
Originally Posted by JMac88
... -Took my ECU to Edconoline (thanks Ed). Plugged in his car, normal voltage and the car started. ...
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That tells me that the problem is in your car. Bad connector, pinched wire, floating ground, etc.
The 20V is weird - I'm guessing you have a power problem to the ECM or a wiring problem and the ECM is giving more or less random readings.
FSM (link in sig) may have some troubleshooting tips.