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need help asap please.car olny sparks when turn key off #175565 12/26/08 07:57 PM 12/26/08 07:57 PM
Joined: Jan 2003 Posts: 8,846 poplar bluff mo. T toplescuda OP I Whine
toplescuda OP I Whine T Joined: Jan 2003 Posts: 8,846 poplar bluff mo.	buddy has a 71 charger that ran fine with the factory points (small block) then one day his wife drove it to work and came out ..nothen so brung it home thinking the points burnt up so now is good time to upgrade to eletronic. so bought a conversion droped it in still no start so bought a new coil still no start got a couple of differnt digrams and evert thing is hooked up right but the only time it will spark is when you turn the key off and its just a one time spark till next time turn it off have a 73 car that runs fine and checked the power to both sides of the coil both with key in run and start and the exact as the one that wont run so what the heck is the deal box is grounded even swaped the box off the running car still nothen why is it only getting a spark from the coil when turn the key off thanks in advance guys 1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175566 12/26/08 08:03 PM 12/26/08 08:03 PM
Joined: Feb 2003 Posts: 8,671 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,671	Little jumbled. Let me get this straight. The car has no spark when cranking. You replaced everything but the ballast resistor. You now have electronic ignition. You see a spark when you turn the key off, but at no other time. You get voltage to the coil in run and start. What voltage do you get? 12 volts in both places? Bad ballast, but the car should start and die when you let go of the key.

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175567 12/26/08 08:03 PM 12/26/08 08:03 PM
Joined: Oct 2003 Posts: 1,249 Las Vegas JeffC pro stock
JeffC pro stock Joined: Oct 2003 Posts: 1,249 Las Vegas	maybe ballast resistor or ignition switch. will it fire if you jump the starter relay? Last edited by JeffC; 12/26/08 08:04 PM.

Re: need help asap please.car olny sparks when turn key off [Re: JeffC] #175568 12/26/08 08:12 PM 12/26/08 08:12 PM
Joined: Jan 2003 Posts: 8,846 poplar bluff mo. T toplescuda OP I Whine
toplescuda OP I Whine T Joined: Jan 2003 Posts: 8,846 poplar bluff mo.	car cranks over fine and the ballist is good it just dont spark from any time you turn the key on(even cranking) till you turn the key to the off postion then it has one nice spark 1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175569 12/26/08 08:18 PM 12/26/08 08:18 PM
Joined: Feb 2003 Posts: 8,671 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,671	eliminate the key and hot wire it. Put a 12 volt positive to the coil and hit the relay so it turns over and see if it starts. Nothing else in the circuit really.

Re: need help asap please.car olny sparks when turn key off [Re: Andrewh] #175570 12/26/08 08:24 PM 12/26/08 08:24 PM
Joined: Mar 2004 Posts: 292 New York City G groundpoint6 enthusiast
groundpoint6 enthusiast G Joined: Mar 2004 Posts: 292 New York City	Sounds like a bad distributor pick up coil

Re: need help asap please.car olny sparks when turn key off [Re: groundpoint6] #175571 12/26/08 09:02 PM 12/26/08 09:02 PM
Joined: Jan 2003 Posts: 4,664 Newfoundland M mopar_man master
mopar_man master M Joined: Jan 2003 Posts: 4,664 Newfoundland	The box is gone !! Sorry reread your first post , As the above poster said , looks like the pick up coil in the dist is not working or the gap is too wide to trip the ECM which in turn unloads the coil Last edited by mopar_man; 12/26/08 09:05 PM.

Re: need help asap please.car olny sparks when turn key [Re: mopar_man] #175572 12/26/08 09:37 PM 12/26/08 09:37 PM
Joined: Jan 2007 Posts: 2 Taylor MI S spl151 member
spl151 member S Joined: Jan 2007 Posts: 2 Taylor MI	Quote: The box is gone !! Sorry reread your first post , As the above poster said , looks like the pick up coil in the dist is not working or the gap is too wide to trip the ECM which in turn unloads the coil Yep thats the problem had it happen to me!

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175573 12/26/08 09:59 PM 12/26/08 09:59 PM
Joined: Jan 2003 Posts: 1,359 Buzzard County, FL IronWolf pro stock
IronWolf pro stock Joined: Jan 2003 Posts: 1,359 Buzzard County, FL	Check to see if the coil wire is not seated properly on coil or distributor (audible click). If that's not the fix, check connections to the starter relay - those wires from the Neutral Safety Switch and ignition switch (yellow wire) aren't too weather-tight.

Re: need help asap please.car olny sparks when turn key off [Re: IronWolf] #175574 12/26/08 10:16 PM 12/26/08 10:16 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	set the reluctor gap to .008". key on coil wire 1/4" from ground & jump coil neg to ground & make & break it. if the 73 is a SB borrow it's dist Last edited by RapidRobert; 12/26/08 10:35 PM. live every 24 hour block of time like it's your last day on earth

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175575 12/26/08 10:23 PM 12/26/08 10:23 PM
Joined: Jan 2003 Posts: 18,414 UPPER MICHIGAN, MARQUETTE COUN... N NITROUSN I Live Here
NITROUSN I Live Here N Joined: Jan 2003 Posts: 18,414 UPPER MICHIGAN, MARQUETTE COUN...	Quote: then one day his wife drove it to work and came out ..nothen so brung it home thinking the points burnt up so now is good time to upgrade to eletronic. so bought a conversion droped it in still no start so bought a new coil still no start You most likely could be fighting the original problem. The car did not run with points so maybe the problem is in the ignition switch or wiring. It may not have anything to do with the conversion. Last edited by NITROUSN; 12/26/08 10:24 PM.

Re: need help asap please.car olny sparks when turn key off [Re: NITROUSN] #175576 12/26/08 10:27 PM 12/26/08 10:27 PM
Joined: Jan 2003 Posts: 6,018 Morningside AdventurerSport waaaay out there in left field
AdventurerSport waaaay out there in left field Joined: Jan 2003 Posts: 6,018 Morningside	Quote: Quote: then one day his wife drove it to work and came out ..nothen so brung it home thinking the points burnt up so now is good time to upgrade to eletronic. so bought a conversion droped it in still no start so bought a new coil still no start You most likely could be fighting the original problem. The car did not run with points so maybe the problem is in the ignition switch or wiring. It may not have anything to do with the conversion. bad idea to assume the points were bad and do a conversion without confirming the original problem, because now you don't really know what the original problem was... start there, and good luck! JS 76 Dodge Adventurer Sport Power Wagon W100 318, 727, NP203 Fulltime 4x4 Russet Red 06 Jeep Commander Ltd 4x4, 5.7L Hemi, QuadraDrive II 06 Chrysler 300C AWD 5.7L Hemi 10 Mopar 10 Challenger R/T, #483/500, 5.7L HEMI 10 Jeep Grand Cherokee Ltd 4x4 5.7L HEMI 11 Dodge Ram 1500 LoneStar Quad Cab, 5.7L HEMI, Fulltime 4x4, Deep Cherry Red 16 Jeep Cherokee Limited 3.2L Pentastar V6, 9 Speed Torqueflite, 4x4, Black

Re: need help asap please.car olny sparks when turn key off [Re: AdventurerSport] #175577 12/26/08 10:54 PM 12/26/08 10:54 PM
Joined: Mar 2004 Posts: 292 New York City G groundpoint6 enthusiast
groundpoint6 enthusiast G Joined: Mar 2004 Posts: 292 New York City	Dist pick up coils are a/c generators. Set your DVOM to an A/C voltage low scale and hook the leads up to the pick up coil. Crank the engine, if you get any reading at all the pick up coil is good, if not change it

Re: need help asap please.car olny sparks when turn key off [Re: toplescuda] #175578 12/26/08 10:55 PM 12/26/08 10:55 PM
Joined: Jan 2003 Posts: 3,623 Millinocket, Maine J JonC master
JonC master J Joined: Jan 2003 Posts: 3,623 Millinocket, Maine	I had this problem when I converted to electronic ignition. In my case, I wired the ballast reistor wrong. Mine was trying to start with the resistor in the cicuit, the starter was drawing enough power to prevent the ignition from getting enough power to ignite. It turned out that I had the bypass for starting on the wrong side of the resister. Just a thought.

Re: need help asap please.car olny sparks when turn key off [Re: JonC] #175579 12/26/08 11:21 PM 12/26/08 11:21 PM
Joined: Jul 2007 Posts: 1,526 North Carolina cjskotni pro stock
cjskotni pro stock Joined: Jul 2007 Posts: 1,526 North Carolina	I had the exact same symptoms when my brand-new ECU box died...stupid Mopar Orange ECU!! You would get no spark when you cranked the motor until you turned the key back then one nice spark... Other than that check the grounds on your ECU and voltage regulator with a continuity meter...

Re: need help asap please.car olny sparks when turn key off [Re: Andrewh] #175580 12/27/08 12:14 AM 12/27/08 12:14 AM
Joined: Dec 2008 Posts: 459 pana illinois B bigblock4x4 mopar
bigblock4x4 mopar B Joined: Dec 2008 Posts: 459 pana illinois	the ignition box was bad on my truck,it did the same thing bought msd

Re: need help asap please.car olny sparks when turn key off [Re: bigblock4x4] #175581 12/27/08 02:11 AM 12/27/08 02:11 AM
Joined: Jun 2004 Posts: 3,319 Chicago Burbs sthemi master
sthemi master Joined: Jun 2004 Posts: 3,319 Chicago Burbs	My add to this problem is that I had a bad wire in the ignition harness where it plugged in to the the switch. Another possible problem is a bad connector in the firewall bulkhead connector for the ignition run switch. Also the ignition switch itself could be bad. Video Little Red Wagon Indy Nats,BurnoutContest

Re: need help asap please.car olny sparks when turn key off [Re: sthemi] #175582 12/27/08 10:04 AM 12/27/08 10:04 AM
Joined: Feb 2003 Posts: 518 COLLINGWOOD, ONT 71_deputy mopar
71_deputy mopar Joined: Feb 2003 Posts: 518 COLLINGWOOD, ONT	Quote: My add to this problem is that I had a bad wire in the ignition harness where it plugged in to the the switch. Another possible problem is a bad connector in the firewall bulkhead connector for the ignition run switch. Also the ignition switch itself could be bad. i agree- the orginal problem- as you turn off the ing. key there is enough connection to give spark!

Re: need help asap please.car olny sparks when turn key off [Re: 71_deputy] #175583 12/27/08 11:42 AM 12/27/08 11:42 AM
Joined: Jan 2003 Posts: 32,928 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,928 Grand Prairie,Texas	Get your test light or VOM out and start doing some diagnosing. Check to see if you have power to the +coil terminal with the key in the runpostion. if you do then jump the starter relay on the fender to crank the engine and see if it starts. If it does then you need to see if you have power to the coil while holding the key in the start position. If you have power there then it's not an ignition or bulkhead wiring problem.

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