Assuming this is an electrical gremlin.  Would love to hear your thoughts.

2002 Jeep Grand Cherokee Idles intermittently roughly, and once in awhile just shuts off.  Noticed a coolant leak under the radiator.  One of the coolant hoses (large upper) collapsed on itself a couple of times after the vehicle cooled down (like sucking in on a straw while plugging up the opposite end).  I replaced the radiator cap & that problem hasn't returned, but I still get a faint smell of coolant when the engine warms up.

Currently receiving the following codes:

P0135 O2 Sensor Heater Circuit Bank 1 Sensor 1

P0141 O2 Sensor Heater Circuit Bank 1 Sensor 2

P0155 O2 Sensor Heater Circuit Bank 2 Sensor 1

P0161 O2 Sensor Heater Circuit Bank 2 Sensor 2

I have already checked the fuse box in the engine bay.  The fuse was intact but replaced it anyway.  🤓 

Here is a video of all 4 O2 senser voltages.  Note occasionally 2X2 lags below in voltage to the rest.  But usually comes up eventually

https://www.youtube.com/embed/VMy2I0PIZYQ

Thanks for your help! - Corey