I own a late 78 thunderbird and I am having problems with the throttle position solinoid,the solinoid is working when the car ignition is switched on. I took a seperate feed to the solinoid and it works ok that way so I obviously have a electrical supply problem, I have also noticed that it is wired up with the a/c unit and have traced the wire back as far as i can see but it dissapears into the woring loom and then goes of into the wig area.Does anybody know what route the TSP wiring takes so I can try and trace back to where the fault is, I have had a look at the ignition switch wiring but the wire must have changed colour as it does not appear in there.

Also on the motorcraft 2150 carb there does not appear to be any electrical connection to the choke, is this correct or does it pick up juice from somewhere else/
Please if anybody could help me with these questions i would be very grateful

Thanks lynchcortina3@aol.com