Ive had this damn code for sooo long and i need to do emissions so its got to go.

Code 41 is o2 heater and i was throwing the code becuase i had no o2 wired in....so for the past few days ive tried 3 different o2 sensors, code still there and today i replaced it with a brand new o2. Code still there. Then i bypassed the harness thinking maybe it was faulty and ran it striaght to the ECU, code is still there!

wtf is the problem...is code 41 more than just o2?

 

engine is jdm zc single cam with a p06 non-vtec ecu which takes a single wire o2 which is exactly what is installed just FYI

 

if its a single wire o2, its a nonheated sensor. just a standard o2. r u positive the code was that

 

yup 100% positive

 

I had this same issue.
First make sure your running the correct o2 (number of wires), and make sure it is wired correctly. Second, what brand o2 are you using? Some have been known to throw codes (i.e.-Bosche). Third, did you clear your ecu after the install?

 

yup its wired in perfectly...but its a bosche universal single wire #11027

 

did you check your signal voltage at idle, .4-.5 volts

 

ok...expletive bosche and any aftermarket o2 sensors...

i had an oem 4 wire sitting around so i decided just to give it a try so i wired it up to the ECU and....

no cel....

even though im sure only one of those wires needs to be wired in...the o2 signal wire oh well...thanks guys!