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.
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.
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.
When to replace the upstream sensor on a Jeep XJ?
Replaced the upstream sensor on a 1998 Jeep XJ as the engine was sputtering and running rough. At the same time, I also replaced the catalytic converter. New sensor worked for about 1 week before it crapped out and started causing worse problems then the old one. I unhooked it for another week until I was able to get a MOPAR OEM sensor.
Where are the O2 sensors located on a Jeep Wrangler?
If you had 4 O2 sensors, you would have a Bank 2. Your O2 sensors should be located before the cat, and one in or after the cat. First one (upstream) determines A/F ratio and makes the engine run, the downstream measures the “health” of the cat. I unplugged the O2 sensor for now, and never noticed a big change in the jeep.
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.
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.
Replaced the upstream sensor on a 1998 Jeep XJ as the engine was sputtering and running rough. At the same time, I also replaced the catalytic converter. New sensor worked for about 1 week before it crapped out and started causing worse problems then the old one. I unhooked it for another week until I was able to get a MOPAR OEM sensor.
What are the sensor codes for a Jeep Wrangler?
I own a 2000 Wrangler 4.0L sport, and recently got the (OBDII) P0132 & P0138 codes which are High Voltage Output in sensors 1 & 2. I had to search this forum, as well as other sites to make sure I was investing my money the right way . Anywayz here’s the breakdown: 1. Got the codes P0132 & P0138. 2.
How do you remove an O2 sensor from a wrangler?
Remove the O2 sensors, one at a time, using a oxygen sensor socket and a ratchet. Turn the sensor counter-clockwise to remove it from the exhaust. Discard the old sensor.
How do you replace an exhaust sensor in a Jeep Wrangler?
Turn the sensor counter-clockwise to remove it from the exhaust. Discard the old sensor. Install the two new sensors into the threaded sections of the exhaust where you removed the old ones from. The two sensors used by Jeep are identical, so either one is fine in each hole.
I own a 2000 Wrangler 4.0L sport, and recently got the (OBDII) P0132 & P0138 codes which are High Voltage Output in sensors 1 & 2. I had to search this forum, as well as other sites to make sure I was investing my money the right way . Anywayz here’s the breakdown: 1. Got the codes P0132 & P0138. 2.