roseyman87

any ideas why i have these codes. im also having misfires on this bank, mostly cyl 3 and some on cyl 2. first time i hade these codes though, cleared them and 1114 showed up again.

Ram@S4-MTM

o2's are shot - check the connectors first (clean them) then replace as necessary...

Stonediggity

Smart to replace in pairs, so if both your bank 1 sensors are shot, you're lookin' at all 4.

roseyman87

wuld that cause misfires on cyl. 3 mostly, and some on cyl. 2??

iznogoud

Do not even bother with cleaning them... One or more
of your O2 sensors are shot and the rest will likely go
pretty soon too.

I had this exact same symptom. First I had the internal
resistance too high code for a while and I kept driving
the car. When I got a CEL it was for the misfires, which
were on multiple cylinders but not all of them and they
happened when I was just starting the car most of the
time. I replaced all four sensors since they are a PITA
to replace and the parts are not all that expensive.
You are looking at $400 in parts and there is some
serious labour unless you get that flexible tool and have
any success in doing it yourself. Search the forum for
the threads with the tool, pictures and links. It is a pretty
difficult thing to do yourself because of difficult
access to the pre-cat sensors.

Stonediggity

It's possible, but fix what you KNOW is broken first then troubleshoot potential side-effects.