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440 won't start in start #2597293
12/26/18 08:26 PM
12/26/18 08:26 PM
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S.florida
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Jupiter331 Offline OP
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I know this has probably been posted before but I can't solve this problem. Converted over to Mopar electronic igniting on a 70 e body. Everything involving ignition is brand new including ignition switch. Will not start in the start mode. As soon as I release the key to on it starts. Shows 8 volts on run and 10v on start at the coil. Even if I run direct from the battery giving me about 12volts it still won't start in start position. At this point I've tried everything I can think of with no results. Any help would be greatly appreciated.....thanks

Re: 440 won't start in start [Re: Jupiter331] #2597303
12/26/18 08:57 PM
12/26/18 08:57 PM
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Lincoln Nebraska
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RapidRobert Offline
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Post all you want (on any issue/anytime). Check that what is being fed in ign1 (run) is the same as what is being fed in ign2 (crank). Post how you have it wired. Your hard parts are fine cuz it does start in ign1 "run" which is thru the ballast so it has to be how it is wired. Something dont sound right tho (but we'll get it figured). EDIT 4 terminal ECU I am assuming. the coil positive primary and the blue/yellow ECU terminal need to be fed in "run" and in "crank" (& in "run" the 12v in the blue wire main feed out from the ign sw goes thru the ballast before it reaches the coil positive primary terminal).

Last edited by RapidRobert; 12/26/18 09:06 PM.

live every 24 hour block of time like it's your last day on earth
Re: 440 won't start in start [Re: RapidRobert] #2597314
12/26/18 09:54 PM
12/26/18 09:54 PM
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S.florida
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Jupiter331 Offline OP
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I will take some photos of the wiring and post them. What really confuses me is running a wire directly from the battery to coil. It reads about 12 volts when cranking yet won't start until it's in the run position....Thank you for your help

Re: 440 won't start in start [Re: Jupiter331] #2597338
12/26/18 11:14 PM
12/26/18 11:14 PM
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Omaha Ne
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TJP Offline
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I would make sure you're getting full battery power to the ECU in the start position whistling Keep us posted twocents

Re: 440 won't start in start [Re: Jupiter331] #2597344
12/26/18 11:20 PM
12/26/18 11:20 PM
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Kirkland, Washington
Pacnorthcuda Offline
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Check that power is making it thru the bulkhead connector (start terminal)

Re: 440 won't start in start [Re: Pacnorthcuda] #2597363
12/27/18 12:02 AM
12/27/18 12:02 AM
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Lincoln Nebraska
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RapidRobert Offline
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Jump 12V to the ballast (upstream end of it so it goes thru it to the coil) & 12V to the blue/yellow terminal on the ECU pentastar connector (stick a pin in there to do that) & stick the red one if it is an OE pentastar connector. crank it & see if it starts


live every 24 hour block of time like it's your last day on earth
Re: 440 won't start in start [Re: Jupiter331] #2597513
12/27/18 12:09 PM
12/27/18 12:09 PM
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VA
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dragon slayer Offline
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More info need to help. How is it starting in run? Are you manually activating the starter solenoid? Why did you change the ignition switch?
Having good volts at coil is nice, but is the ignition box getting voltage in Start mode?

Re: 440 won't start in start [Re: dragon slayer] #2597608
12/27/18 02:57 PM
12/27/18 02:57 PM
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north of coder
moparx Offline
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to simplify this. in start, the starter circuit gets current as well as the ignition circuit.
engine runs.
key is let go to run position. engine continues to run.
starter circuit is disabled [current is cut to that part of wiring circuit.
engine continues to run because run circuit is still getting current.

when engine "starts" in the run position only, the starter has got the engine spinning fast enough that when the key is released and current is established in the run position, the engine fires and continues to run.

places to look at include the ignition switch, the connector where the ignition switch connects to the main harness, the bulkhead connection, the starter relay, and anything that looks "suspicious".

wiring can [at times] make a guy tear his hair out. panic
good luck, and please post back when the problem has been worked out.
beer

Re: 440 won't start in start [Re: Jupiter331] #2597787
12/27/18 10:48 PM
12/27/18 10:48 PM
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Chicago
PurpleBeeper Offline
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My 2-cents..... the brown ignition wire, coming from the bulkhead disconnect, is not getting 12V.
a) bad brown wire
b) bad connection at bulkhead disconnect
c) bad ignition switch

d) bad ballast resistor

e) wiring is bas-akwards or crossed in some way


70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"
Re: 440 won't start in start [Re: Jupiter331] #2597795
12/27/18 11:02 PM
12/27/18 11:02 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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d) bad ballast resistor

lol


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 440 won't start in start [Re: Supercuda] #2598146
12/28/18 09:42 PM
12/28/18 09:42 PM
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Omaha Ne
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TJP Offline
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Must be another, Hey it's fixed now thanks to the boards help,
Sorry but I don't have time to respond fan down ozbbq

Re: 440 won't start in start [Re: Jupiter331] #2598333
12/29/18 12:43 PM
12/29/18 12:43 PM
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McGregor,Iowa 52157
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500ciDuster Offline
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I had an orange box go bad and was doing this before it went out completely

Re: 440 won't start in start [Re: TJP] #2598456
12/29/18 05:43 PM
12/29/18 05:43 PM
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oklahoma
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forphorty Offline
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Originally Posted By TJP
Must be another, Hey it's fixed now thanks to the boards help,
Sorry but I don't have time to respond fan down ozbbq
Why do you think that?

Re: 440 won't start in start [Re: forphorty] #2598594
12/29/18 10:39 PM
12/29/18 10:39 PM
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TJP Offline
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Originally Posted By forphorty
Originally Posted By TJP
Must be another, Hey it's fixed now thanks to the boards help,
Sorry but I don't have time to respond fan down ozbbq
Why do you think that?


because the OP just dropped out without responding to those that took the time to try and help him.
beer

Re: 440 won't start in start [Re: Jupiter331] #2598682
12/30/18 03:17 AM
12/30/18 03:17 AM
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oklahoma
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forphorty Offline
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It's only been a couple of days. Maybe he hasn't responded because he hasn't fixed it yet. Perhaps we will hear from him yet. The posters I take offence with are the ones that come back with a "never mind, it's fixed" without revealing the solution, or they delete their posts so you don't know what the heck they were even asking.

Re: 440 won't start in start [Re: Supercuda] #2599446
12/31/18 09:05 PM
12/31/18 09:05 PM
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Posts: 71
S.florida
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Jupiter331 Offline OP
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I thought I fixed it by switching the connections on the resistor. Starts fine but when it's been running for a while it once again won't start in the start position. Posted some pictures. I don't know if it will help

IMG_0056.jpg
Re: 440 won't start in start [Re: Jupiter331] #2599451
12/31/18 09:09 PM
12/31/18 09:09 PM
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Posts: 71
S.florida
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Jupiter331 Offline OP
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Sorry took so long to respond. Christmas took priority

Re: 440 won't start in start [Re: Jupiter331] #2599466
12/31/18 09:25 PM
12/31/18 09:25 PM
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Originally Posted By Jupiter331
Sorry took so long to respond. Christmas took priority

Amen Pal. up
Never mind the curmudgeons.


I have mechanical Aptitude.
I can screw up anything.
Re: 440 won't start in start [Re: bboogieart] #2599518
12/31/18 10:42 PM
12/31/18 10:42 PM
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Lincoln Nebraska
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RapidRobert Offline
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(1) the two terminals on each long "end" of the ballast in the white connectors, connect them together (makeing a parallel circuit) on each end (I hope that makes sense, in other words making the dual ballast into a single ballast). (2) run the blue ign1 "run" wire to the upstreeam end of the ballast (3) run the brown ign2 "crank" wire to the downstream end of the ballast (bypassing the ballast) (4) then the downstream end of the ballast to the coil positive primary. I believe the black/yellow to coil neg & the other two to the dist pickup are polarity correct for correct Rotor Phasing cuz it does run OK when it runs. EDIT As said, confirm the box is grounded well (removeing/retightening the 2 mounting screws usuall does it) MORE EDIT post how you have it wired (I couldn't quite see from the pic but something ain't right). the green with red tracer wire should not be connected to anything (useing the orange box), more later when you post what is where.

Last edited by RapidRobert; 12/31/18 11:54 PM. Reason: missed something

live every 24 hour block of time like it's your last day on earth
Re: 440 won't start in start [Re: Jupiter331] #2599544
12/31/18 11:20 PM
12/31/18 11:20 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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A 70 E body should not be running a dual ballast. Especially with an orange box. Sounds like something is heating up, failing then when it cools it works again.

Time to get a meter out and take some voltage readings before and after failure.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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