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'63 ply. runs, dies, runs..then it gets weird #2657600
05/21/19 03:14 PM
05/21/19 03:14 PM
Joined: Sep 2003
Posts: 146
bflo. ny
44070dart Offline OP
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Thought the pick up was bad ..I put a new pick up in and took the car out, drove fine.. for about 40 minutes and quit which was what it was doing and why I changed the pick up.. Started right back up and drove a couple miles home. .. changed the ignition model with new 4 pin I had, > won't start ..put in original 4 pinmodule ..it starts.. thought the new module I had was bad as it has laid in my garage for years, so I go this morning and buy a new module.. no start. put old one in, it starts... .again ..went and got # 3 as everyone felt there pretty much junk these days put it in >> no start..... WHY will it run with the faulty one and not the new ones ....ANY suggestion .. been over the wiring and grounds they check out. new ballast resistor, coil, bulkhead connection is clean and solid. After I change any thing I put in the old one to make sure it still starts and it does. THANKS

DSCN2851.JPG
Last edited by 44070dart; 05/21/19 03:15 PM.
Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657602
05/21/19 03:16 PM
05/21/19 03:16 PM
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Grand Prairie,Texas
stumpy Offline
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Try mounting the coil upright instead of up side down.

Re: '63 ply. runs, dies, runs..then it gets weird [Re: stumpy] #2657614
05/21/19 03:58 PM
05/21/19 03:58 PM
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Running the mechanical regulator style charging system in contraindicated for electronic ignition as well.

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657617
05/21/19 04:03 PM
05/21/19 04:03 PM
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Lincoln Nebraska
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RapidRobert Offline
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let it idle & bump/jostle all the ECU/pickup wires & see if you can get it to die. & next time it wont start, pull the yellow wire off of the starter relay to disable the starter & have a helper hold the key to crank & you with your meter see what ain't being fed then have him release the key & pull a batt cable & with your meter on ohms check the pickup for continuity at the ECU. The fact that changing out the ECU makes it OK tells me the prob might be in that connector but I ain't 100% sure.


live every 24 hour block of time like it's your last day on earth
Re: '63 ply. runs, dies, runs..then it gets weird [Re: RapidRobert] #2657622
05/21/19 04:12 PM
05/21/19 04:12 PM
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northwest USA
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NANKET Offline
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Boy that electronic ignition is so much easier to diagnose, and so much more reliable than points. LMAO

Re: '63 ply. runs, dies, runs..then it gets weird [Re: RapidRobert] #2657625
05/21/19 04:19 PM
05/21/19 04:19 PM
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Posts: 146
bflo. ny
44070dart Offline OP
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When it's running I have pulled and bent all the wires to get it to do something ..it doesn't do anything.. when it stalls, it starts back up without touching anything .. why it won't start with new ecu is driving me and a lot of other people crazy

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657626
05/21/19 04:26 PM
05/21/19 04:26 PM
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Canuckville
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I agree the coil should not be upside down.
Ditto get an electronic voltage regulator.
Are you running a sngle field or dual field alternator??
for giggles swap out the ballast resistor.

it is something simple and you just don't see it...yet


'68 Newport Custom Barge on a Budget!! BOAB
1973 Satellite WAGON! 318- 3 on the tree!!
2008 Chrysler 300c HEMI!
Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657630
05/21/19 04:32 PM
05/21/19 04:32 PM
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Lincoln Nebraska
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RapidRobert Offline
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the start/no start, changes with the ECU changeout & that is pointing me to the ECU connector/harness.


live every 24 hour block of time like it's your last day on earth
Re: '63 ply. runs, dies, runs..then it gets weird [Re: 68Cbarge] #2657632
05/21/19 04:34 PM
05/21/19 04:34 PM
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northwest USA
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More worrisome that the mounting of the coil. What brand of coil is that? Swap that out. These newer “trick” coils bring many driveability problems but they don’t quit they just cause trouble so you think it’s something else.

Do you have an aftermarket tach? Disconnect it from the negative side of the coil and see how it runs.

What are the 3 wires going to the left side coil terminal? Disconnect all the gadgets and see how the engine runs.

Last edited by NANKET; 05/21/19 04:37 PM.
Re: '63 ply. runs, dies, runs..then it gets weird [Re: NANKET] #2657640
05/21/19 04:53 PM
05/21/19 04:53 PM
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Posts: 146
bflo. ny
44070dart Offline OP
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new coil, right side up.. new ballast resistor, right side up... I've cleaned up the connector and checked for voltage readings and they are 11.2 volts .. one of the wires on coil ran to choke I removed that.. no after market gauges. thanks keep them coming

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657649
05/21/19 05:15 PM
05/21/19 05:15 PM
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Lincoln Nebraska
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RapidRobert Offline
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at this point I might disconnect ALL the related wiring & power everything (ECU/coil/pickup/ballast) with jumpers & see if it straightens out. Then replace (1) wire/remove its jumper, one at a time till it shows itself.


live every 24 hour block of time like it's your last day on earth
Re: '63 ply. runs, dies, runs..then it gets weird [Re: RapidRobert] #2657651
05/21/19 05:20 PM
05/21/19 05:20 PM
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11.2 volts is low, especially if it's running, but it's low regardless.

Where are you measuring that voltage? At the battery??

At some point the ECU will stop working when the voltage gets low enough. You may have found that point.

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657652
05/21/19 05:20 PM
05/21/19 05:20 PM
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New Jersey
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Powerflow Online content
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Try disconnecting the fuel line and run the engine off a gas can. You may have dirt in the tank (or a disintegrating fuel tank liner, if the tank was coated) that intermittently gets sucked up by the fuel pump.

BTW, I don't know how much the coil being upright has to do with anything. Chrysler mounted ignition coils upside down at the factory on the old flathead sixes and they worked fine.

Re: '63 ply. runs, dies, runs..then it gets weird [Re: Powerflow] #2657715
05/21/19 07:30 PM
05/21/19 07:30 PM
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Omaha Ne
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You might want to check the module wiring / connectors. I had one a few years ago in which one of the female sockets in the molded connector was too deep and barely making contact with the pins. It would cause the car to die when closing the R door but would start right back up. LOL it was a strange one to find laugh2

Another one that was intermittent had a wire internally broken, it also would start right back up

beer

Last edited by TJP; 05/21/19 07:34 PM.
Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657729
05/21/19 08:07 PM
05/21/19 08:07 PM
Joined: Sep 2003
Posts: 146
bflo. ny
44070dart Offline OP
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got it .. don't know why, but I put the original pick up in and it's running

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657733
05/21/19 08:14 PM
05/21/19 08:14 PM
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Balt. Md
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I had a strange problem years ago where my Dart I had would run with an aftermarket ECU but with 2 new orange MP ECU's it would not run. Found out I had the pick-up coil wires crossed in the harness and when I changed them back right the car ran on all of the ECU modules. Seems the aftermarket ECU worked with the wires to the pick-up crossed but the factory MP ones had to have the wires right. Ron

Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657744
05/21/19 08:39 PM
05/21/19 08:39 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote
got it . I put the original pick up in and it's running
That was way to easy!


live every 24 hour block of time like it's your last day on earth
Re: '63 ply. runs, dies, runs..then it gets weird [Re: RapidRobert] #2657789
05/21/19 10:38 PM
05/21/19 10:38 PM
Joined: Sep 2003
Posts: 146
bflo. ny
44070dart Offline OP
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Originally Posted by RapidRobert
Quote
got it . I put the original pick up in and it's running
That was way to easy!


3 days and countless swearing, put it on take it off, test light this, test light that, multimeter check again and again, drop screws under car, swear, parts store four times, two extra modules, an extra pick up, new coil on, new coil off, AND I don't have an answer ..........it was a snap. whiney .......... thanks guys

Last edited by 44070dart; 05/21/19 10:38 PM.
Re: '63 ply. runs, dies, runs..then it gets weird [Re: 44070dart] #2657808
05/21/19 11:20 PM
05/21/19 11:20 PM
Joined: Nov 2003
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Lincoln Nebraska
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RapidRobert Offline
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Murphys law. You'll be alright (for awhile) & I do feel your pain (been there).


live every 24 hour block of time like it's your last day on earth
Re: '63 ply. runs, dies, runs..then it gets weird [Re: RapidRobert] #2657935
05/22/19 10:37 AM
05/22/19 10:37 AM
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Posts: 19,237
north of coder
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still, the 11.2v bothers me. see why you have that voltage drop.
beer

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