blaizemarshall
New Member
I have a 2006 Liberty 3.7L, 187,000 miles. I have recently had both cats replaced at a muffler shop. First cat was replaced a little while ago due to rattling noise and it was found to be completely broken inside of housing. A little while later I got a p0420 and since the other cat had crapped out recently I assumed, possibly wrongly, that this one had as well. Got it replaced. P0420 came back after sensors ran. I was ignoring it for a bit and the code self cleared. After some driving it came back, then cleared again, then came back. However the second time it came back it was accompanied by a p0137, which I understood to be low voltage on Bank 1 Sensor 2. I recently changed the o2 sensor and it was pretty burnt up. I manually cleared the code and am waiting to get some driving in on it to see if it comes back and will update post if it does. If anyone has any insight on this strange intermittent-ness of these codes it would be much appreciated!
Attached is a pic of the old sensor (left) and the new one (right).
Attached is a pic of the old sensor (left) and the new one (right).