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Jeep Wrangler YJ
YJ General Discussion
Running Rich
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<blockquote data-quote="machoheadgames" data-source="post: 433408" data-attributes="member: 18789"><p>22 - engine coolant temperature sensor voltage too high or too low</p><p>27 - injector does not respond properly to the control signal.</p><p></p><p>I would guess the running rich is due to 22. You could have a faulty injector causing the 27 but I would change the temp sensor first. The one on the thermostat housing. Once you do that, then either your "injector problem" might go away, or it might become more obvious. If you do have an injector problem, then buying 6 new ones would be the best move. Still don't know which ones would be best.</p><p></p><p>Basically your temp sensor needs to be changed and one of your injectors is not working as expected according to the computer. But sometimes the computer thinks the injectors are faulty based on running rich, which might be from the temp sensor. So change the temp sensor first and see what happens, then decide if the injectors still need to be messed with.</p><p></p><p>You probably had a code 21 before when the oreilly guy told you O2 sensor. You probably fixed that with the new O2 sensor and now are onto the next problems. Either that or he didn't read all the codes or at least didn't tell you all of them.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 433408, member: 18789"] 22 - engine coolant temperature sensor voltage too high or too low 27 - injector does not respond properly to the control signal. I would guess the running rich is due to 22. You could have a faulty injector causing the 27 but I would change the temp sensor first. The one on the thermostat housing. Once you do that, then either your "injector problem" might go away, or it might become more obvious. If you do have an injector problem, then buying 6 new ones would be the best move. Still don't know which ones would be best. Basically your temp sensor needs to be changed and one of your injectors is not working as expected according to the computer. But sometimes the computer thinks the injectors are faulty based on running rich, which might be from the temp sensor. So change the temp sensor first and see what happens, then decide if the injectors still need to be messed with. You probably had a code 21 before when the oreilly guy told you O2 sensor. You probably fixed that with the new O2 sensor and now are onto the next problems. Either that or he didn't read all the codes or at least didn't tell you all of them. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Running Rich
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