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Jeep Wrangler YJ
YJ General Discussion
1990 4.2 no spark, tried everything but I ignition switch
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<blockquote data-quote="jeepjoe43" data-source="post: 429675" data-attributes="member: 19255"><p>OK, that qualifies, but I'm afraid the computer controlled carburetor and separate ICM are out of my realm of expertise.</p><p>Mine is a '91, 2.5 with MPI.</p><p>I was chasing a similar gremlin that turned out to be a broken wire at the plug for the coil on the harness.</p><p>The harnesses are also known to corrode at the firewall connection.</p><p>I would try the switch first though it is a PITA, just be sure to tape the rod to column. </p><p>I didn't know about that and took a 2 hour fishing trip trying to get mine back in place.</p></blockquote><p></p>
[QUOTE="jeepjoe43, post: 429675, member: 19255"] OK, that qualifies, but I'm afraid the computer controlled carburetor and separate ICM are out of my realm of expertise. Mine is a '91, 2.5 with MPI. I was chasing a similar gremlin that turned out to be a broken wire at the plug for the coil on the harness. The harnesses are also known to corrode at the firewall connection. I would try the switch first though it is a PITA, just be sure to tape the rod to column. I didn't know about that and took a 2 hour fishing trip trying to get mine back in place. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
1990 4.2 no spark, tried everything but I ignition switch
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