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2002 Isuzu 3.2V-6 P0154 and P0155 codes
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JonCarn
User
Oct 27, 2014, 5:33 AM
Post #1 of 6
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2002 Isuzu 3.2V-6 P0154 and P0155 codes
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I am getting 2 oxygen sensor codes on my 2002 Isuzu Rodeo and need some help. I am getting 0155 and 0154 for bank 2 sensor 1. I replaced the O2 sensor and still get the codes. Cleared the PCM, swapped bank sensors and still get code so I am guessing this is wiring. What I need is a wiring diagram for the 4 heated O2 sensors so I can trace the wiring back. Also, if these are all looped relative to wiring, why is it only affecting 1 sensor?
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 27, 2014, 7:24 AM
Post #2 of 6
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Re: 2002 Isuzu 3.2V-6 P0154 and P0155 codes
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Which sensor did you replace? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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JonCarn
User
Oct 27, 2014, 7:56 AM
Post #3 of 6
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Re: 2002 Isuzu 3.2V-6 P0154 and P0155 codes
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I replaced the passenger side sensor before the cat and then tried swapping the same sensor from the driver side and the code stayed the same
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 27, 2014, 8:42 AM
Post #4 of 6
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Re: 2002 Isuzu 3.2V-6 P0154 and P0155 codes
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No, you're looking for the upstream on the driver's side. Make sure you have the right one. You're going to have to test the wiring if you've eliminated the sensor. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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JonCarn
User
Oct 30, 2014, 5:55 AM
Post #5 of 6
(5820 views)
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Re: 2002 Isuzu 3.2V-6 P0154 and P0155 codes
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That was the problem, swapped sensors and code has not returned. The really annoys me that the $28 manual tells me the wrong side!
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 30, 2014, 6:25 AM
Post #6 of 6
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Re: 2002 Isuzu 3.2V-6 P0154 and P0155 codes
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Yep, those manuals are junk. For about the same money you could have gotten a year of AlldataDIY which is the same service we use. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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