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Unread 07-05-2012, 01:41 PM   #1
Dluenz
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1993 YJ Wrangler 
 
Join Date: Dec 2011
Location: Sheboygan, WI
Posts: 482
1993 4.0 misfire

Alright so I just replaced my wires, plugs, cap, and rotor on my 1993 Grand Cherokee 4.0 and it now has a horrible misfire and its running like crap. So if anyone has any pointers or anything that would be great. I used platinum spark plugs and duralast wires. HELPPPPPP

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1996 ZJ 5.2 np-249 DD. Skids.
1993 YJ 4.0 32RH auto. NP-231. Zone Offroad 2" lift. Skids. Cragar D Windows. 31s. Rugged Ridge 8500lb winch. Bushwacker Cut Outs. Cut and rebuilt most of the frame.
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Unread 07-06-2012, 09:40 AM   #2
Mishimoto
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Join Date: Apr 2012
Location: Wilmington, Delaware
Posts: 409
No mis-fire before and now you have one? Sounds like you've got your wires mixed up, someone probably has a diagram or picture of their wires and cap to post up for you to reference. Curious why you got platinum plugs?
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Unread 07-06-2012, 09:46 AM   #3
Dluenz
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1993 YJ Wrangler 
 
Join Date: Dec 2011
Location: Sheboygan, WI
Posts: 482
alright I'll look for one, and Price I guess
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1996 ZJ 5.2 np-249 DD. Skids.
1993 YJ 4.0 32RH auto. NP-231. Zone Offroad 2" lift. Skids. Cragar D Windows. 31s. Rugged Ridge 8500lb winch. Bushwacker Cut Outs. Cut and rebuilt most of the frame.
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Unread 07-06-2012, 09:55 AM   #4
Mishimoto
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Location: Wilmington, Delaware
Posts: 409
Not 100% sure if this diagram covers the 93, someone else may know for sure
9059fig28l.jpg  
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