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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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<blockquote data-quote="utapesgeometriam" data-source="post: 462275" data-attributes="member: 25742"><p>Hey if anyone else is dealing with this, the resolution for me was a catalytic converter replacement.</p><p></p><p>Apparently the cat was just clogged enough to cause misfires on bank 1 at idle.</p><p></p><p>You can test by pulling the bank 1 upstream O2 sensor and if the misfires disappear with it out (decreased backpressure) the cat is the problem.</p></blockquote><p></p>
[QUOTE="utapesgeometriam, post: 462275, member: 25742"] Hey if anyone else is dealing with this, the resolution for me was a catalytic converter replacement. Apparently the cat was just clogged enough to cause misfires on bank 1 at idle. You can test by pulling the bank 1 upstream O2 sensor and if the misfires disappear with it out (decreased backpressure) the cat is the problem. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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