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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: 446476" data-attributes="member: 22557"><p>Solved - ISH ;-)</p><p></p><p>So - the misfire is solved - together with about dozen of other code like air-to - fuel ratio disbalance.</p><p>About 6 different codes were caused by.....incorrect O2 Sensors!!!!!!!</p><p></p><p>SELF INFLICTED - but How you ask? See the screenshot from RockAuto for 2013 jku O2 Sensors:</p><p></p><p>[ATTACH=full]120881[/ATTACH]</p><p></p><p></p><p>As you can see - recommended and hearted sensor is Bosch 15510, which according to RockAuto fits into any of the upstream/downstream configurations. At least that's how I read it. Though if I paid better attention I would see that other o2 sensors have 2 sensor part numbers for different locations. I though ECM is smart enough to figure out location through wiring. WRONG!!!!</p><p></p><p>Ended up buying NTK- OEM and placing them into exactly defined locations - and poof problem solved.</p><p></p><p>[ATTACH=full]120883[/ATTACH]</p><p></p><p></p><p>Now, I still have P0018 Code crank/Cam bank 2 mis-allignment. So either sensor or maybe the actual chain jumped - have to figure out how to test. But overall jeep runs perfect. below is what OBD@ tool shows:</p><p>[ATTACH=full]120884[/ATTACH]</p><p></p><p>Will try Ivan - if he can take a look at numbers and if it makes sense to him.</p><p></p><p>Lets see.</p><p></p><p>[ATTACH=full]120882[/ATTACH]</p></blockquote><p></p>
[QUOTE="Rdartua, post: 446476, member: 22557"] Solved - ISH ;-) So - the misfire is solved - together with about dozen of other code like air-to - fuel ratio disbalance. About 6 different codes were caused by.....incorrect O2 Sensors!!!!!!! SELF INFLICTED - but How you ask? See the screenshot from RockAuto for 2013 jku O2 Sensors: [ATTACH type="full" alt="1648846907766.png"]120881[/ATTACH] As you can see - recommended and hearted sensor is Bosch 15510, which according to RockAuto fits into any of the upstream/downstream configurations. At least that's how I read it. Though if I paid better attention I would see that other o2 sensors have 2 sensor part numbers for different locations. I though ECM is smart enough to figure out location through wiring. WRONG!!!! Ended up buying NTK- OEM and placing them into exactly defined locations - and poof problem solved. [ATTACH type="full" alt="1648847209891.png"]120883[/ATTACH] Now, I still have P0018 Code crank/Cam bank 2 mis-allignment. So either sensor or maybe the actual chain jumped - have to figure out how to test. But overall jeep runs perfect. below is what OBD@ tool shows: [ATTACH type="full" alt="1648849070073.png"]120884[/ATTACH] Will try Ivan - if he can take a look at numbers and if it makes sense to him. Lets see. [ATTACH=full]120882[/ATTACH] [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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