Good morning. i ran my scanner on my truck to day and my 2 bank 1 sensors seem to be bouncing between .150 and .700 but my bank 1 sensor 2 seems to be stuck at 680-720 and not bouncing, is this normal?
i did pull a code po135 heater circuit malfunction BANK 1 SENSOR 1
Also im not sure where my fuel trims should be
my
ST1 10.0
LT1 25.0
ST2 12.0
LT2 25.0
closd loop.
when i first got the truck i pulled codes for lean bank 1 and 2 also a cylinder #4 misfire and the bank 1 sensor 1 heater circuit. i reset the codes and the heater circuit bank 1 sensor 1 poped the mil light in 5 min. so im starting with the o2 sensors. iv not found any vacuume leaks at this point.
thanks