Check engine light codes P0133 and P0153 help

Fishtaco

TJ Expert
Original poster
Joined
Sep 29, 2020
Messages
3,750
Location
Perth AU
Ok new to jeeps only had this TJ just over a week and now check engine light has come on showing codes p0133 and p0153. I sort of know these are 02 sensors from my google but is it common for both to show at once? could it be another problems? need some help as I know nothing about jeeps and only driven it 82 kilometres (51 miles)
Can I still drive it? Should I still drive it? as soon as the light came on I stopped it and Googled then decided to dive the short distance home and it drives fine.
Really would appreciate some experienced info.

Cheers.
 
Slow response on O2 Sensor Banks 1 & 2.
There are heating elements in the O2 sensors that bring the O2 sensor up to operating temperature so they can read oxygen levels in the exhaust by voltages generated allowing the ECM how to adjust the A/F mixture by pulsing the fuel injectors.
Could be the O2 sensors are dirty or old and need to be replaced.
IF you have a Scan Tool you can check the voltages generated by the O2 sensor to see what the ECM is seeing as for voltages (.1-.9 VDC)