O2 sensors

[Baldoldfart]

Are the Bosch ones advertised on ebay the same as originals? I had a VZ at a workshop and the 02 sensors codes kept coming up, I said put some new ones in thinking they wouldn't gouge too much, they charged close to $600 for two! They said the price was so expensive because they were genuine. Codes still came up after I picked up the car so I got some Bosch ones for the rear sensors from ebay for $90 for the two which look zackery the same as the front ones they fitted. I knew car workshops were rip off but that's next level. Or did I buy Chinese cheapies? They were branded/boxed Bosch.

 

[07GTS]

hard to tell now days but i think Bosch have a print or code in there's, i use ''walker'' brand in mine i find them good, i actually got some proper Bosch but they don't operate same as the walker and take longer to heat up even on restarts, what code is showing for them?

 

[Baldoldfart]

I think it was P0131-00/P said sensor circuit low voltage bank 1 sensor 1, before different codes went around all 4 sensors

 

[07GTS]

circuit low usually means the wire is shorting to earth pulling it down, if u have a scan tool that can show 02 voltages u could look at it and see if it is reading right or low, usually unplugged it will read in the middle 450mv a circuit low will be around 0mv but if its cycling around the 200mv to 800mv up and down then that is normal closed loop operation

 

[Baldoldfart]

Ok so far hasn't thrown anymore codes, one of the sensors was worn through the outside insulation.