Results 1 to 6 of 6
Hybrid View
-
12-17-2019 #1Registered User
- Join Date
- Jul 2017
- Posts
- 166
Strange voltage and no start with new setup. Need HELP
Update: adding the ground seemed to fix the issue. As for the strange voltage i experienced after adding the ground, my father in-law suggested i put a load on the wire with high voltage using a test light while using the volt meter. If the voltage on the volt meter dropped to O then i was good, if it did not drop we had a bigger issue. He said volt meters act funny sometimes but this will help determine the problem.
I'm just starting my car for the first time, it has a new AAW harness and a swap harness for a Gen V motor.
My power setup on the car mimics Mad Electrical's setup with a trunk mounted battery in my 68 camaro and goes as follows:
0/1 wire from battery to ford solenoid (Allstar Performance with 4 studs total) It connected to the right stud if that matters?
0/1 wire from the solenoid to the starter. On the left side stud it it matters
8g wire from the alternator to a terminal block in the engine bay near the booster then goes to the battery for charging.
AAW harness gets power from the terminal block
Crank purple wire goes to Lokar neutral safety switch
Starter purple wires comes form the neutral safety switch to the starter inlet on the swap harness
18g or 16g (cant remember) goes from the starter side of the neutral safety switch to the Ford solenoid to activate it.
Simple right? Kind of but I'm getting strange voltage readings and no crank.
alternator, battery side of solenoid and all accessories get 12v as they should with key on and cranked.
The S terminal on the solenoid has 0v with key on and 10v while cranked... not 12
The starter side of the terminal gets 8v with key on and 10v while cranked. should get 0v with key on.
The 4th terminal has around 20v with key on and off. Not using this one but worth noting
All purple wires are at 0v with key on but go to 10v with crank. This includes the solenoid wire.
Something is up with the neutral safety switch or solenoid.
I read up on the solenoid a bit and then need a ground, mine is mounted my plastic battery box so I added a ground jumper to the battery directly and out of nowhere it started as it should.
Now things get interesting... The starter side of the solenoid gets 22v, enough to crank the car but too much volts Im assuming. most everything seems fine but the starter wire keeps power and should not, nor should it be 22v with key on and at crank.
Any thoughts? I'll try to bypass the solenoid tomorrow and see if that works and or bypass the neutral safety switch.