SERVICE ENGINE SOON Light on, P0134, o2 sensor signal will not get above .5V

In this video I walk you through diagnosing and understanding DTC P0134. I do tackle a theory I have which involves the DTC setting due to oil contamination due to a valve cover oil leak. Also, I go over some basic theory and tools used for the job.

[@joserosas5420]

Very well put together video. Everything you demonstrated and explained made perfect sense. Thank you for posting.

[@jime.angulo4151]

Glad it was helpful!

[@44musher]

Thank you Sir, for a very clear and concise explanation. My valve cover is the culprit as well.

[@jime.angulo4151]

Watch my other video on valve cover gasket replacement. Apparently proper torque is the key to eliminate oil leaks.

[@kronomarine]

One of my o2 sensors died at roughly the exact same mileage as yours. Think it was the driver's side senor though. I replaced both at that time. 2005 Gen 3 Montero. 🍻

[@steelersnation4L]

I had this code plus P0300 could a back o2 sensor cause both these codes ?

[@jime.angulo4151]

no, o2 sensor will not cause P0300 but fix the p0134 first.

[@steelersnation4L]

@@jime.angulo4151 yeah I’m having it done on Friday

[@steelersnation4L]

@@jime.angulo4151 that’s crazy you knew the code without me saying it I know you are a real mechanic thank you for the response

[@davidtaormina8285]

Had my mechanic replace it and CEL was back on within a day. Taking it back in tomorrow. Could it just be a bad sensor

[@jime.angulo4151]

let me know what happened..

[@digihz_data]

Dude.... Don't ever touch the sensor with your fingers like you did when you greased it in.

[@jime.angulo4151]

that is a mith, it's still working perfectly after more than 1 year.