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Re: The Road Runner runs and drives! BUT.......need help. [Re: mikemee1331] #1299307 09/09/12 12:59 PM 09/09/12 12:59 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	Quote: Quote: Well the car is up to its old tricks again! Took it out last night about 20 to 30 minutes and it slowly started to go down hill with starting to stumble and chugging. I could hear it coming on so I headed for home and as I turned the corner it died out let it sit for 30 seconds and fire it up chirped the tires a few time to keep it running and pulled into the drive in which it died again. Sounds to me like it could be a fuel delivery problem maybe? this is more consistent with a gradual buildup of heat in the electricial components than it is with a fuel issue. that leads me back to the 4 pin ballast when 1969 only has 2. how old is that coil? and once again, what ohm is that ballast? do you know why your wiring has been changed to a 4 pin?? answered my own question after i re-read your post. your new harness came with a 4 pin. ok then, most likely the 5th pin on your ecu is not being used and you don't need a 4 pin ballast. i reading around on the coil you are using it seems it requires a 1.2ohm ballast. what are you using? i'm guessing a .5 ohm?

Re: The Road Runner runs and drives! BUT.......need help. [Re: mikemee1331] #1299308 09/09/12 04:36 PM 09/09/12 04:36 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	SO... upon more inspection I found the wires going to the alternator (running a dual field alternator) that are black and violet that go to the battery side of the alternator that gets clapped down with a nut was just flopping around on there!!! Could this have been part or all of the problem? Its beeen tightened down now!

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299309 09/09/12 04:48 PM 09/09/12 04:48 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	Here is a pic of some of electrical set up. 7371751-IMG01557-20120909-1531.jpg (85 downloads)

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299310 09/09/12 05:05 PM 09/09/12 05:05 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	no, that doesn't help. here is a diagram of how your ballast should be wired - http://www.allpar.com/fix/electronic-ignition.html - i'm guessing you have it reversed and the coil is overheating.

Re: The Road Runner runs and drives! BUT.......need help. [Re: mikemee1331] #1299311 09/09/12 05:17 PM 09/09/12 05:17 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	I will check out that web site. Thanks for your help Mike!

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299312 09/09/12 05:30 PM 09/09/12 05:30 PM
Joined: Feb 2003 Posts: 10,198 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,198 Someplace you aren't	You have a bad ground for the ECU. This is consistant with causing your problem. The more heat that builds, the worse it makes the ground. The reason so many people have "bad" ECU boxes is because they establish a new good ground by R&R the box. You were good for a short time until the ground corroded again. I would run a ground wire from the mounting screw to the battery and be done with it. I want my fair share

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299313 09/09/12 05:39 PM 09/09/12 05:39 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	You are thinking the wiring on the ballast is reversed? I am just learning this but I thought the ballast could be connected either side with the connections? What exactly is reversed the connections on the coil itself.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299314 09/09/12 05:45 PM 09/09/12 05:45 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	Quote: You are thinking the wiring on the ballast is reversed? I am just learning this but I thought the ballast could be connected either side with the connections? What exactly is reversed the connections on the coil itself. since i don't know the ohm readings on the ballast you have installed i am going by supplied information on what your ballast 'might' be. one side is 1.2 ohm and the other is .5 ohms. the 1.2 side should be routed to your coil and the .5 side to the box. also, above your post, SomeCarGuy has a very good point. make sure your ecu has a good ground. although a bad ground would just cause the motor to not run. a flaky one would drive you nuts with a work/no-work situation. Last edited by mikemee1331; 09/09/12 05:48 PM.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299315 09/09/12 05:50 PM 09/09/12 05:50 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	From the ECU to the coil is wired correctly. The only wire that is in the harness to the ECU but not being used is (green with a red tracer) still running to the ballast not sure why or where it goes from there must be wrapped up in the wiring harness somewhere? I can try running a ground wire from the mounting screw on the ECU directly to the battery.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299316 09/09/12 05:53 PM 09/09/12 05:53 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	I will check ballast for ohm's Thanks for hanging with me as I try to figure this out!

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299317 09/09/12 05:55 PM 09/09/12 05:55 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	Whats the smallest wire size would you recocmend should I run from ECU for a ground.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299318 09/09/12 06:06 PM 09/09/12 06:06 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	since you don't need a pin 3 on your ECU why not just eliminate it? go to the parts store get a single sided ballast 1.2-1.5 ohm. follow the diagram.

Re: The Road Runner runs and drives! BUT.......need help. [Re: mikemee1331] #1299319 09/09/12 06:14 PM 09/09/12 06:14 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	I see now where one side is reading a high ohm reading than the other so, I need to flip them around to be on the correct side for the correct ohms going to the coil.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299320 09/09/12 06:45 PM 09/09/12 06:45 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	assuming you have them reversed then yes, just flip the top to the bottom. as to the ground, it's just a ground. use what you have laying around. just make sure you have BARE metal to BARE metal.

Re: The Road Runner runs and drives! BUT.......need help. [Re: ONEBADBIRD] #1299321 09/09/12 08:01 PM 09/09/12 08:01 PM
Joined: Jan 2003 Posts: 292 Atlanta DartGTX enthusiast
DartGTX enthusiast Joined: Jan 2003 Posts: 292 Atlanta	Common problem with restored cars and/or new paint. Did you remove the paint behind both the ignition box and the voltage regulator? Bare metal contact provides ground and heat dissipation for both electronic components. Good luck! 7372048-1970_plymouth_gtx_yellow_black_car_postcard-p239566851075389526qibm_400.jpg (56 downloads)

Re: The Road Runner runs and drives! BUT.......need help. [Re: DartGTX] #1299322 09/09/12 09:02 PM 09/09/12 09:02 PM
Joined: Feb 2006 Posts: 551 Great Lakes State O ONEBADBIRD OP mopar
ONEBADBIRD OP mopar O Joined: Feb 2006 Posts: 551 Great Lakes State	Yes, I am doing that behind all my mounts for my electrical connections. Thanks!

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