So I am restoring an 82 F150 with the I300, and struggling to get it running. It is bone stock right now, but the I300 in it is not the original motor. It will run if you give it throttle, but it will not idle. It has the feedback carb, and the distributor with the module mounted directly to the side of the distributor. It also has a parasitic draw that kills the battery if it is hooked up. I'm trying to resolve the draw problem to eliminate any associated electrical problems that may be associated with the difficulty with idling. I understand the basics of electricity but definitely minimal experience with automotive wiring other than plugging in a new part.
Here's what I have found with the draw:
Doing a draw test by pulling the neg battery cable off with a multimeter - I get .6 miliapms of draw.
Pulled all the fuses with no change.
The starter solenoid has two wires hooked up with the red positive - if you disconnect the yellow one, the draw drops to around .25.
Traced the yellow wire - I think it goes to the EEC Relay under the dash. Unplugged the relay, no change still .6. The wire definitely runs with the massive wire bundle under the dash to either the EEC relay or the big plug with like 25 wires in the middle of the underdash.
Tried looking in my Chilton's at the wiring diagram and that wire seems to be labeled "marker relay" but again - not an expert on auto wiring.
One other thing is that one of the solenoid posts has no wire on it - the little one next to the black cable that runs to the starter.
So now I'm stuck - to start with - what is an acceptable draw? .6 miliamp does not seem like a lot, but it will go dead over night. Is there a wire that should be hooked to the solenoid?
Any thoughts or help would be much appreciated!
Here's what I have found with the draw:
Doing a draw test by pulling the neg battery cable off with a multimeter - I get .6 miliapms of draw.
Pulled all the fuses with no change.
The starter solenoid has two wires hooked up with the red positive - if you disconnect the yellow one, the draw drops to around .25.
Traced the yellow wire - I think it goes to the EEC Relay under the dash. Unplugged the relay, no change still .6. The wire definitely runs with the massive wire bundle under the dash to either the EEC relay or the big plug with like 25 wires in the middle of the underdash.
Tried looking in my Chilton's at the wiring diagram and that wire seems to be labeled "marker relay" but again - not an expert on auto wiring.
One other thing is that one of the solenoid posts has no wire on it - the little one next to the black cable that runs to the starter.
So now I'm stuck - to start with - what is an acceptable draw? .6 miliamp does not seem like a lot, but it will go dead over night. Is there a wire that should be hooked to the solenoid?
Any thoughts or help would be much appreciated!