87 renix ignition coil and control module upgrade - JeepForum.com
 
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post #1 of 2 Old 12-24-2018, 08:40 PM Thread Starter
SinisterNM
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1987 YJ Wrangler 
 
Join Date: Apr 2018
Location: forestville
Posts: 38
87 renix ignition coil and control module upgrade

hi, i have been having trouble with my coil not getting power. sometimes its a no start thing but mostly its a driving down the road then i get no spark till i get out and wiggle some wires on my icm. i would like to change it out with a msd coil and would like to delete the icm all together to see if it helps. problem is the schematics ive found don't show inner workings of the icm or the ecm. ive tried to draw what i assume the inside wires do but need some verification. or just plain help as i don't understand electricity very much. thanks.

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post #2 of 2 Old 12-24-2018, 08:44 PM Thread Starter
SinisterNM
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1987 YJ Wrangler 
 
Join Date: Apr 2018
Location: forestville
Posts: 38
i just wish i had a multi meter to see whats getting power when this happens but its so unpredictable ive never had the opportunity to check. and when she runs she runs fine, a little fast idle ,1,200-1,400rpm and no power above 3rd gear but i assume thats normal.
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2.5l , ignition coil , renix , wiring diagram , wrangler

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