Need help troubleshooting MSD ignition *Problem solved*
#1732344
01/17/15 06:58 PM
01/17/15 06:58 PM
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Joined: Jul 2010
Posts: 1,845
Tampa
DusterDave
OP
top fuel
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OP
top fuel
Joined: Jul 2010
Posts: 1,845
Tampa
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I installed an MSD Digital 6AL and an MSD Pro Billet distributor in my stroker 318/390 Jeep project, and I don't have spark at the plugs. I'm posting this here, because its a performance type ignition system. I did the test recommended by MSD, where you touch the green and violet wires with a paper clip, and I got spark out of the coil. Problem is, I don't get any spark at the plugs when turning the engine over. I've checked and rechecked all my wiring. All my power and ground wires were checked with a multimeter. I even went and bought another box, just to rule that out!!  I've run out of things to check, and I'm pretty aggravated at this point. Any advice is welcome.
Gone to the dark side with an LS3 powered '57 Chevy 210
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Re: Need help troubleshooting MSD ignition
[Re: DusterDave]
#1732346
01/17/15 07:11 PM
01/17/15 07:11 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Did you jump the crank and run wires out of the ignition switch so its hot all the time the key is on.. and did you eliminate the ballast 
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Re: Need help troubleshooting MSD ignition
[Re: DusterDave]
#1732349
01/17/15 07:24 PM
01/17/15 07:24 PM
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Joined: Sep 2007
Posts: 1,890
Spahn Ranch
RMCHRGR
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top fuel
Joined: Sep 2007
Posts: 1,890
Spahn Ranch
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Have you tried tried switching the polarity of the pickup wires?
I ran into a similar problem last year. I did all the same checks and rechecks you did, no dice.
Posted the problem here and Bob George said to try that. I didn't really even understand what he was referring to at first but then I went back and re-read it. I went out and tried it and voila! Car started right up.
MSD actually makes a note of it in the instructions.
'71 Duster
'17 Ram 1500
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Re: Need help troubleshooting MSD ignition
[Re: DusterDave]
#1732350
01/17/15 08:00 PM
01/17/15 08:00 PM
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Joined: Feb 2014
Posts: 1,703
central il.
second 70
top fuel
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top fuel
Joined: Feb 2014
Posts: 1,703
central il.
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Quote:
I installed an MSD Digital 6AL and an MSD Pro Billet distributor in my stroker 318/390 Jeep project, and I don't have spark at the plugs. I'm posting this here, because its a performance type ignition system. I did the test recommended by MSD, where you touch the green and violet wires with a paper clip, and I got spark out of the coil. Problem is, I don't get any spark at the plugs when turning the engine over. I've checked and rechecked all my wiring. All my power and ground wires were checked with a multimeter. I even went and bought another box, just to rule that out!!
I've run out of things to check, and I'm pretty aggravated at this point. Any advice is welcome.
As Mr. P said You have to tie the starter wire and ignition wire together. If you check you will find the ignition wire is hot when the key is in run position and not the start position.
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