Alchern
Active Member
Hello gang, My 2016 LR4 runs very smooth at initial start up and when driving, but after coming off the highway and the vehicle is warmed up, the idle seems rough. It seems especially bad when shifting from drive into reverse - it almost hesitates before moving. It is also slightly noticeable when stopped at a red light, when the Eco auto shut-off is disabled. Timing chains have been replaced, but wasn't noticeable after this was completed 6 months ago.
I do have a GAP tool and the only applicable codes thrown are P0142, P0042, P0055 - all to do with O2 sensor Bank 1 Sensor 3 (downstream). New O2 sensor is ordered but waiting forever for it to come in (I doubt this will make any difference in idle). I'm new to GAP tool - what are the best live values to monitor when I am experiencing the rough idle to give me some potential info about what could be going on? Any help would be greatly appreciated.
I do have a GAP tool and the only applicable codes thrown are P0142, P0042, P0055 - all to do with O2 sensor Bank 1 Sensor 3 (downstream). New O2 sensor is ordered but waiting forever for it to come in (I doubt this will make any difference in idle). I'm new to GAP tool - what are the best live values to monitor when I am experiencing the rough idle to give me some potential info about what could be going on? Any help would be greatly appreciated.