Re: 427/425 Engine Problem
Walter, With a high accuracy Ohmmeter you can measure the resistor wire end to end. IIRC Dave told me it's about .6-.8 ohms or so.(I have notes somewhere) It's the Black wire in the 3 terminal plug at the TI Module which becomes the White braided wire to the Coil+
Wiring Diagram HERE
Also....
12V with IGN on indicates these possible faults....HERE
1- Open in Primary Circuit (I believe this means the Black wire from TI Module, through resistor wire, to Coil+)
2- Bad Ign Coil
3- Open Ground to Coil-
Attach a jumper between known good Ground Directly to Coil-
If now normal 2.5 to 4.5 volts, fault is Bad ground to TI Module/Coil- (Make sure the Ground Wire at the TI Module case has a good clean connection, as this is Coil-)
If still 12V... Bad Ign Coil.
Walter, With a high accuracy Ohmmeter you can measure the resistor wire end to end. IIRC Dave told me it's about .6-.8 ohms or so.(I have notes somewhere) It's the Black wire in the 3 terminal plug at the TI Module which becomes the White braided wire to the Coil+
Wiring Diagram HERE
Also....
12V with IGN on indicates these possible faults....HERE
1- Open in Primary Circuit (I believe this means the Black wire from TI Module, through resistor wire, to Coil+)
2- Bad Ign Coil
3- Open Ground to Coil-
Attach a jumper between known good Ground Directly to Coil-
If now normal 2.5 to 4.5 volts, fault is Bad ground to TI Module/Coil- (Make sure the Ground Wire at the TI Module case has a good clean connection, as this is Coil-)
If still 12V... Bad Ign Coil.
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