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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="Rdartua" data-source="post: 444299" data-attributes="member: 22557"><p>Well, after everything said and done, I ended up buying a high end ODB2 tool - xtool d8 and performed Cam/Crank relearn and now most of misfires went away. Now from time to time I get cyl 2 misfire, but it does not trigger check engine and still produces good trip record. I am just wondering why dealer could not perform same function. Even with this fix there still an issue, but something I can resolve over time. The xtool allows to read live data, showing cams position and difference between desired and actual all withing 5% range, injector pulse width, etc. Interestingly - cylinders with lower pulse with on injectors are the ones misfiring. I wonder if there is a way to re-code injectors to same pulse width....not sure how to do this.</p></blockquote><p></p>
[QUOTE="Rdartua, post: 444299, member: 22557"] Well, after everything said and done, I ended up buying a high end ODB2 tool - xtool d8 and performed Cam/Crank relearn and now most of misfires went away. Now from time to time I get cyl 2 misfire, but it does not trigger check engine and still produces good trip record. I am just wondering why dealer could not perform same function. Even with this fix there still an issue, but something I can resolve over time. The xtool allows to read live data, showing cams position and difference between desired and actual all withing 5% range, injector pulse width, etc. Interestingly - cylinders with lower pulse with on injectors are the ones misfiring. I wonder if there is a way to re-code injectors to same pulse width....not sure how to do this. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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