Help with O2 sensors.
#1
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Year: 1998
Model: Cherokee
Engine: 4.0L
Help with O2 sensors.
After living with the check engine light on for quite a while, I finally reset the codes and replaced the O2 sensor (upstream). It worked well for a few days then the CE light came on again with the same code and added the code for the downstream sensor. Replaced both with Denso O2 sensors and reset everything, CE light back on after a couple of days.
Is there something I am missing here? Any suggestions on what to try? And which brand is the OEM sensor?
Thanks in advance.
Is there something I am missing here? Any suggestions on what to try? And which brand is the OEM sensor?
Thanks in advance.
#4
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Here's some stuff on 02's and related business they need to work.
http://www.naxja.org/forum/showthrea...ht=sensor+test
http://www.naxja.org/forum/showthrea...ht=sensor+test
#6
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Year: 1998
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The codes are being cleared with a OBDII code scanner, then the sensors are replaced with the batt disconnected. Would I need to reset the CPU each time?
And yes, the cat is still on it, replaced about a year ago.
And yes, the cat is still on it, replaced about a year ago.
#7
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Year: 1998
Model: Cherokee
Engine: 4.0L
Originally Posted by DFlintstone
Here's some stuff on 02's and related business they need to work.
http://www.naxja.org/forum/showthrea...ht=sensor+test
http://www.naxja.org/forum/showthrea...ht=sensor+test
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