FBO Ignition system toubleshooting
#1068570
09/03/11 06:11 PM
09/03/11 06:11 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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Joplin, MO USA
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I have less than 500 miles on the system. It just died in the garage from driving around town, lucky I know. Now no fire. The dizzy has 365 ohms.....ignition 1 and 2 at the ballast is good. The ballast has .9 ohms.
The coil is hot on both sides(12 volts) though, this doesn't seem right to me. Isn't the negative side of the coil supposed to blink with a test light when spinning over. It's just as hot as the positive side even just sitting not turning the motor over.
Also when key is on I have less than 4 volts coming from the ignition box to the dizzy, not sure if that's correct or not.
Any help would be appreciative, thanks.
Moparlee
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Re: FBO Ignition system toubleshooting
[Re: mikemee1331]
#1068572
09/03/11 08:55 PM
09/03/11 08:55 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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It's an older (a couple of years ago now) system I guess, cause the website shows some different boxes now. Mine looks like the regular mopar style brain box, but it's black. I got the box, coil & ballast with it.
Moparlee
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Re: FBO Ignition system toubleshooting
[Re: Robbins]
#1068574
09/03/11 11:10 PM
09/03/11 11:10 PM
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Joined: Jan 2003
Posts: 5,445 So Cal
Sinitro
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Make sure the ignition module is grounded well. It needs to be screwed down tite, metal-to-metal.. Especially its rear side... Also double check the reluctor gap should be 0.008 using a brass feeler gauge... Just my $0.02...
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Re: FBO Ignition system toubleshooting
[Re: mikemee1331]
#1068577
09/04/11 09:06 AM
09/04/11 09:06 AM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
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Don told me that his original ECU could not handle 12v and that is why he had it redesigned with the new 12v coil. I ran his old ECU with another brand 12v coil (no ballast) on the street for about 6 months with no issue. That ECU "might" last for a while with 12v on it. I bought his new 12v ECU/Coil but I only have about 4 weeks driving time on them, but so far no problems.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: FBO Ignition system toubleshooting
[Re: YO7_A66]
#1068578
09/04/11 10:14 AM
09/04/11 10:14 AM
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Joined: Apr 2010
Posts: 4,154 bethlehem pa
mikemee1331
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Quote:
Don told me that his original ECU could not handle 12v and that is why he had it redesigned with the new 12v coil. I ran his old ECU with another brand 12v coil (no ballast) on the street for about 6 months with no issue. That ECU "might" last for a while with 12v on it. I bought his new 12v ECU/Coil but I only have about 4 weeks driving time on them, but so far no problems.
good info here and do check what Sinitro suggested.
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Re: FBO Ignition system toubleshooting
[Re: gtsdude]
#1068580
09/04/11 11:42 AM
09/04/11 11:42 AM
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Joined: Apr 2010
Posts: 4,154 bethlehem pa
mikemee1331
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Quote:
I had same issue with my ballast blowing, try an MSD ballast, have never blew one of those yet, been 5 years now.
his ignition is all matched. your suggestion is all well and good if the ohms are the same ballast to ballast.
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Re: FBO Ignition system toubleshooting
[Re: mikemee1331]
#1068581
09/04/11 11:49 AM
09/04/11 11:49 AM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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I haven't had a chance to go outside this morning, but it doesn't seem wrong to have 12 volt on the negative side of the coil?
Moparlee
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Re: FBO Ignition system toubleshooting
[Re: 469runner]
#1068584
09/04/11 02:55 PM
09/04/11 02:55 PM
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Joined: Jan 2003
Posts: 75,070 U.S.S.A.
JohnRR
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I Win
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Posts: 75,070
U.S.S.A.
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Quote:
That box is probably bad. I had the same issue and replaced the box. I barely had 2000 miles on this set up. That stuff is all hype. It won't produce one more horsepower. "Yap, yap, yap,my stuff is better than everyones elses, all made in the USA." Yeah, tell that to the guy that spent 200 dollars on your stuff and is now sitting on the side of the road. OK, rant off. Just get a mopar performance setup. You'll be happier.
And carry a spare ECU and a ballast ....
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Re: FBO Ignition system toubleshooting
[Re: gtsdude]
#1068588
09/04/11 11:50 PM
09/04/11 11:50 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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Thanks guys, I'll be calling him and see what he says next week.
Moparlee
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Re: FBO Ignition system toubleshooting
[Re: Robbins]
#1068589
09/06/11 05:52 PM
09/06/11 05:52 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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Well...........I called him. I'm out on warranty by a day or two. But he did give some info....I shouldn't have 12 volt with the key in the on position like I do.
Well as soon as I plug into the ballast I get 12 volts, I'm not sure how or why. Unplug the pink wires from the ballast and no voltage. My blue wire is supposed to have 12 volts, but the pink two wires on the other side in the run position shouldn't have until you turn the key to ignition two. When I ohm the resister it shows 1.2 ohms.
What I'm missing here?
Last edited by Robbins; 09/06/11 05:53 PM.
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