I,m field testing a Hydrogen dry cell generator for my PT Cruiser 2008 and need a little help locating a run only wire from the ignition so that when the engine is running that the generator can only be on if the motor is running.Can anyone locate this wire so I can install this generator this weekend and start posting results each week here.I currently get 27-31 mpg w/o a/c with ac 22-15 mpg now.

 

You can look at any Haynes or Chiltons manual for the electrical schematics and find or or get a test light and probe your wires for power on with the key on and power off with the key off