does anyone know what this means??po134 02 sensor CKT no activity(bank1 sensor1) i understand the obvious,but not sure what CKT is...thanx

 

 

you catless?

 

works HFC... i was getting a po420 for a few months, but now it's po134

 

 

look at the first page, there is a sticky that lists all the codes. I believe that that code is for the rear O2 sensor and that ecu has no communication with it.

 

Well if it's bank 1 then that should be the front shouldn't...

I had this problem and I was going crazy over nothing... what a hell of a time I had..


anyways.................

My car was running extremely rich, black smoke at idle, spitting out soot, car stalling, bad idling, car bogging between shifts..

If you get any of those it should be the 02 sensor burned out... at first I'd get this 02 sensor light.. then it would go away and I wouldn't be having my problems then it would come back... like my 02 sensor was dying but not completely dead yet.. eventually it will probably burn out.. I guess theres nothing you can do since it's a "wear item".