Installed o2 sensors upstream and now running smooth. No Check Engine for 30 miles drive. Turned engine off/on few times already but Ultraguage says pending trouble code p0134. What does it mean? To this point no Check Engine light.

 

isnt this the same as your other thread on the same subject? or am i missing something?

https://landroverforums.com/forum/di...r-p0134-78038/

 

Sorry. Yes, 1st time using my phone in forum. Earlier i checked but there were more codes but i found out that the connector got diconnected and now the check engine light is gone but a pending code showed up. Does it mean it will soon be a real trouble code?

 

Here is where I ended up.
After connecting the O2 sensor connector back in place, p0135 and p0155 disappeared which those codes are related to the bank 1 sensor and are back online. I am assuming that the O2 sensor is working. The p134 description says (O2 sensor circuit no activity detected (bank 1, sensor 1) and the circuit is open. They all go together in one orange connector.
I am thinking that the sensor is ok but one connector is not getting information back to where ever the obd scanner is trying to locate. Meaning its just a bad connector. Is that possibly correct?
Also, if not only the connector is bad, but the wires coming somewhere from the engine, is that replaceable? I cant find in RAVE where the wires are coming from or it can be reached. Or, there is another connector hidden up near the engine.

 

My first move when I have any connector issue with any sensor is a power cleaning with CRC electric contact cleaner, and then a light shot of lithium grease. Then put it back together.

Its not a 100% effective system, but it works often enough to justify the cost. You'd be amazed how sensitive those silly little connector clips are to some grit in them.

Barring that, a soldering iron and some heat shrink makes any connection rock solid.

 

I bought this morning the cleaner from homedepot, I hope this one works. But another question: If the main connector is broken, where can I get them? The leads are going towards the engine but is there another plug to unplug it? Thanks