Wiring diagram error??
If I were you I'd determine if the ECU you have is "really" 5 pin. Physical pins don't matter. Many of the "4 pin" ECUs have 5 physical pins. You have to check resistance carefully from the 5th pin to everything else to determine if that is what it is.
To my knowledge, NO one in current production makes 5 pin boxes anymore. If the one you have is 4, you can stay with the simpler 2 pin resistor.
Also, if you have a good points distributor, you can easily use it in emergencies. Say the ECU quits. Just unplug the ECU, stick in the points distributor, and hook up the dist. wire to coil NEG. That's all.
In fact, years ago, I actually used "some bracket" and bolted a coil to a spare Mopar distributor, making a "spare" ignition system before anyone invented "ready to run" LOL
Yet another way when I test fired a junk engine, is an HEI box.........(I run an HEI module with my car anyhow)
If I were you I'd determine if the ECU you have is "really" 5 pin. Physical pins don't matter. Many of the "4 pin" ECUs have 5 physical pins. You have to check resistance carefully from the 5th pin to everything else to determine if that is what it is.
To my knowledge, NO one in current production makes 5 pin boxes anymore. If the one you have is 4, you can stay with the simpler 2 pin resistor.
Also, if you have a good points distributor, you can easily use it in emergencies. Say the ECU quits. Just unplug the ECU, stick in the points distributor, and hook up the dist. wire to coil NEG. That's all.
In fact, years ago, I actually used "some bracket" and bolted a coil to a spare Mopar distributor, making a "spare" ignition system before anyone invented "ready to run" LOL
Yet another way when I test fired a junk engine, is an HEI box.........(I run an HEI module with my car anyhow)