Fitz24
Bronco Guru
- Joined
- Jul 4, 2007
- Messages
- 1,299
Finished installing a new centech harness, except for the lights. Everything was pretty easy until I got to the duraspark ignition wiring. The instruction leave a little to the imagination. I'm not totally uneducated about wiring and the principles but something is not correct in my work as evidenced from it not starting.
From the diagrams I got off CB, Fordfuelinjection.com, and the centech instructions everything seems to be wired correctly. After some trouble shooting this is what I get.
1. The motor turns over fine.
2. Motor ran fine when I began the project a little over a year ago.
3. Running stock 75 ignition system with voltage regulator, ballast resistor (came with new harness), contol module and dizzy.
4. Blue ign pwr wire from harness to ballast resistor has 11.89 volts with key in run position.
5. Red Power wire on module has the same 11.89 volts with key in run position.
6. Oposite side of Ballast Resistor has 6.06 volts (measures 1.5 ohms accross resistor).
7. I terminal on starter solenoid has 6.06 volts with key in run position.
8. + ign coil has 6.06 volts with key in run position.
9. Violet wire connected to S terminal of solenoid gets enough to ingage solenoid to spin motor (didn't have enough hands to measure while turning key to start position. Couldn't find my test leads with clips.).
10. 1.5 volts accross the orange and violet wires from the module.
11. Measured ohms accross orange and violet on dizzy and it showed open. Still need to verify the installation of the new connector used on the input wires to the dizzy.
12. Harness that I made that connects module to dizzy shows continuity as it should to proper connectors on other end.
13. Black wire from dizzy connected to black on module (should it also connect to chassis ground?).
14. I think I am missing a bypass wire which I think from the diagrams should run from blue ign pwr wire to I terminal on starter solenoid?
Sorry it is long but wanted to supply as much information as I could. I know all the knowledge on this site with help me find what is wrong. Need to have this thing ready for OCBR!
Thanks for any help.
From the diagrams I got off CB, Fordfuelinjection.com, and the centech instructions everything seems to be wired correctly. After some trouble shooting this is what I get.
1. The motor turns over fine.
2. Motor ran fine when I began the project a little over a year ago.
3. Running stock 75 ignition system with voltage regulator, ballast resistor (came with new harness), contol module and dizzy.
4. Blue ign pwr wire from harness to ballast resistor has 11.89 volts with key in run position.
5. Red Power wire on module has the same 11.89 volts with key in run position.
6. Oposite side of Ballast Resistor has 6.06 volts (measures 1.5 ohms accross resistor).
7. I terminal on starter solenoid has 6.06 volts with key in run position.
8. + ign coil has 6.06 volts with key in run position.
9. Violet wire connected to S terminal of solenoid gets enough to ingage solenoid to spin motor (didn't have enough hands to measure while turning key to start position. Couldn't find my test leads with clips.).
10. 1.5 volts accross the orange and violet wires from the module.
11. Measured ohms accross orange and violet on dizzy and it showed open. Still need to verify the installation of the new connector used on the input wires to the dizzy.
12. Harness that I made that connects module to dizzy shows continuity as it should to proper connectors on other end.
13. Black wire from dizzy connected to black on module (should it also connect to chassis ground?).
14. I think I am missing a bypass wire which I think from the diagrams should run from blue ign pwr wire to I terminal on starter solenoid?
Sorry it is long but wanted to supply as much information as I could. I know all the knowledge on this site with help me find what is wrong. Need to have this thing ready for OCBR!
Thanks for any help.