Where are the oxygen sensors on a jeep?
Knows a couple things… Bank 1 is at the front of the engine, Bank 2 is at the rear of the engine. Sensor 1 is above the pre-cat, Sensor 2 is below the pre-cat. Bank 1 is at the front of the engine, Bank 2 is at the rear of the engine.
Is there an oxygen sensor in the Liberty?
I’m looking at a wiring diagram for the ’02 Liberty and there is a oxygen sensor downstream relay in the PDC in the ’02 model, but both rear O2’s are being feed off of the same circuit; so if you have power at the 2/2 but not at the 1/2 then look for a wiring issue.
Which is better Denso sensor or Bosch sensor?
The Bosch sensors are very good, but they heat up more slowly then the Denso sensors. If the heating takes too long, the PCM will see it as a fault and set a fault code and switch the check engine light on. I have heard of more guys who used Bosch without problems, but also many others who encountered problems with the Bosch sensors.
How to install O2 sensors on a Jeep Wrangler?
When installing new O2 sensors, be certain to use some anti-seize on the threads of the new O2 sensors! This is important, and will save you a huge headache should you ever need to remove them in the future. In addition, a O2 sensor socket will greatly aide in the installation and removal of O2 sensors. I recommend this one.
Is the Jeep Wrangler TJ sensitive to oxygen?
Pay close attention to this one so you can do it once and do it right! The Jeep Wrangler TJ is extremely sensitive to all oxygen sensors other than NGK / NTK. Bosch O2 sensors and all the others (including the crappy Chinese brands you’ll buy at your local auto part store) are very well documented as not working properly with our TJs.
Where is the O2 sensor upstream or downstream?
Simple, upstream means the O2 sensor is “upstream” of the catalytic convertors, meaning before the catalytic convertors. Downstream means the O2 sensor is “downstream” of the catalytic convertors, meaning after the catalytic convertors.
I’m looking at a wiring diagram for the ’02 Liberty and there is a oxygen sensor downstream relay in the PDC in the ’02 model, but both rear O2’s are being feed off of the same circuit; so if you have power at the 2/2 but not at the 1/2 then look for a wiring issue.