Electrical Demon?
Not all harnesses install the same. This is a PITA. This is WHY I wanted you to find out if you have a 4 or 5 pin ECU, because if you have a 4 pin, the "other side" of the ballast is not needed.
In other words, if your harness plugs in so that the "jumper" end is plugged into the end of the resistor with the U cutout, then the two wires at the opposite end must be reversed left to right in the diagram below. Think electrically, not mechanically.
Go by this diagram:
Look at the upside down "U" shaped cutout in the diagram. THIS is what identifies each section of the resistor. On a 4 pin (newer) ECU the left side of the resistor, which feeds reduced power to the box is eliminated
http://www.mymopar.com/downloads/Ignition_System_5pin.jpg
Regardless of how your harness is hooked up, the LOW RESISTANCE side of the resistor MUST hook to the coil
See here:
Top of the resistor is what feeds the ECU. The BOTTOM of the resistor is same as a 2 pin coil resistor
http://www.mymopar.com/index.php?pid=115
http://www.mymopar.com/forum_images/Ballast_Resistors.png
Not all harnesses install the same. This is a PITA. This is WHY I wanted you to find out if you have a 4 or 5 pin ECU, because if you have a 4 pin, the "other side" of the ballast is not needed.
In other words, if your harness plugs in so that the "jumper" end is plugged into the end of the resistor with the U cutout, then the two wires at the opposite end must be reversed left to right in the diagram below. Think electrically, not mechanically.
Go by this diagram:
Look at the upside down "U" shaped cutout in the diagram. THIS is what identifies each section of the resistor. On a 4 pin (newer) ECU the left side of the resistor, which feeds reduced power to the box is eliminated
http://www.mymopar.com/downloads/Ignition_System_5pin.jpg
Regardless of how your harness is hooked up, the LOW RESISTANCE side of the resistor MUST hook to the coil
See here:
Top of the resistor is what feeds the ECU. The BOTTOM of the resistor is same as a 2 pin coil resistor
http://www.mymopar.com/index.php?pid=115
http://www.mymopar.com/forum_images/Ballast_Resistors.png