commish10 wrote:

Finished installing AAW kit on 68 mustang. Should there be power across the solenoid in start and cranking position ​I .get no power under any condition on the starter side of the solenoid, Grounds or bad solenoid? Also are there any wires that go on the "S" or "I" studs of the solenoid? Thanks?

You've got no ignition power signal to the solenoid.  The "I" stud takes the signal from the ignition switch start position to energize the solenoid.  The "S" terminal delivers a momentary full 12 volts to the coil while the starter is engaged.
 

Sounds like I need an ignition connection to the "S", I already have a wire going from the "I" to one of the studs on the starter per the manufacturer instructions.  ​So sounds like I just need 1 wire. Thanks
 ​Not stock ignition, MSD. set up

Last edited by commish10 (4/14/2016 7:10 PM)

Sorry Boom, but your explanation is backards.  In start the Ign switch puts 12v on the S lug of the solenoid.  That makes the solenoid (Just a heavy duty relay) close and deliver 12v to the starter AND to the "I" terminal which put 12 to the coil by effectively bypassing the pink wire during startup. 

Now, There very definitely needs to be a wire to the "S" lug of the solenoid or it ain't never gonna spin the engine.  The I terminal can be used as explained above if the system is stock.  If your ign system can take straight 12v, then you can do away with the any wire to the "I" lug of the solenoid.

From your explantion, Commish, if you have an automatic trans, it sounds like you may have run the start wire from the Ign switch to the neutral safety switch but never completed the circuit by running a wire from the safety switch to the solenoid.

Maybe Corky will chime in here, he installed the AAW harness in his 65 a couple of years ago with good results.

BB

Last edited by Bullet Bob (4/14/2016 9:07 PM)

commish10 wrote:

So I should just need some ignition power to the "S" (front) terminal and be good to go?

You need a wire that puts 12v on the S lug of the solenoid ONLY when the key is in START.  Since you have an MSD ignition you can run 12V directly from the RUN terminal of the Ign Sw to the Coil/Ignition...The I lug of the solenoid can be left open.

BB

Manual Trans. Using an aftermarket starter. RobbMc. Has a lug for Heavy Cable, and lug that connects to the "I" terminal on the Solenoid

I didn't read through this whole post so I'll apologize in advance if this was already covered. I think AAW is the same kit I have. Here is a purple wire that connects to the solenoid for cranking. The problem is the purple wire is connected to the ignition switch, it then is supposed to connect to a neutral safety switch then go to the solenoid. If you have no neutral safety switch connected you get no power to the solenoid. AAW does not give you a schematic to show this. Find the ends on the 2 purple wires that go to the safety switch and tie them together.

So sounds like I should have 2 purple going to "S" terminal. Or at least one spliced into the other somewhere along the line.  According to the AAW instructions there is a purple from the main branch and a purple from the ignition switch. I will give that a try,