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Unread 10-30-2013, 12:26 PM   #1
jasonjones21
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1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana, ca
Posts: 219
Msd question

I have an issue with my tach, temp, fuel, and oil pressure gauges they all just bounce the tach only intermittently works it looks like a short could my msd 6a 6200 be wired wrong I do have the tach adapter

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Unread 10-30-2013, 01:16 PM   #2
SeanB95YJ
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1995 YJ Wrangler 
 
Join Date: Nov 2009
Location: Schenectady, New York
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it COULD be wired wrong, at least as far as your intermittent tach readings... but that wouldn't explain your other gauges - they have nothing to do with your ignition or the MSD box....
my guess would be on either bad ground to the gauges, or corrosion on the ribbon cable behind them and at the cluster connector
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 10-30-2013, 01:31 PM   #3
jasonjones21
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So u would suggest buying new gauges and getting the msd rewired
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Unread 10-30-2013, 01:38 PM   #4
SeanB95YJ
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1995 YJ Wrangler 
 
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no... if the engine is running fine, I would leave the MSD box alone. your problem is MOST likely your gauges, or the wiring to them. it's a common problem for them to build up corrosion on the backsides and become erratic. Chances are your gauges themselves are fine. remove the gauge clusters and inspect the back of them - the connector where the ribbon cable connects. if you see any white/green powdery residue, clean it well. also the ribbon cable itself sometimes accumulates corrosion - check/clean that too.

you COULD get new gauges.... if you need an "excuse", this could qualify. but unless you WANT to replace all the gauges (can get expensive real quick) I'd try the cleaning first. once you get em clean, put a light coating of dielectric grease on all the connectors.
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 10-30-2013, 03:04 PM   #5
timatoe
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Like said the MSD shouldn't have any effect on the other gauges. I used to have one and couldn't get the tach working everything I read said no tach filter was needed. I called MSD tech support and they told me it was needed. I ended going with an HEI when I did the fuel injection so never did get the MSD figured out for sure.
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Unread 11-01-2013, 08:23 AM   #6
Que89YJ
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1989 YJ Wrangler 
 
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Read this thread:
http://www.jeepforum.com/forum/f12/r...er-how-991307/
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