I have a '98 5.2 4x4 and I started to get the o2 code but before that during warm up the cat was popping real loud and engine had started to tick which told me I was getting some pressure back into the motor.
Its an odd one to cut and it has a upstream and downstream o2 sensor (before and after the cat) I had changed sensors light went off then back on, now I didn't buy the best ones because I am on disability but they tested out ok and if you watch them on a graph if you have the test equipment( I have Torque,paid version with lots of add on plus a good reader to plug in the port) off came the cat,it went the splice and away went the trouble code, odd thing is that 1 gas mileage went way UP(most likely due to it not breathing) rumble was nice but it Never tripped the engine light even as of yet but seems to stay in a closed loop mode. Any one else not have the check engine light NOT come on?
If you go to parts store they wanna give you the Bosch and both are low band sensors(and yes Durango takes a different one I believe in the rear), can I put a wide in the front?