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Anyone notice that that most O2 sensors these days don't last and start to fall over fairly quick.

I would be on my 3rd or 4th Bosch 4 wire in 3 years, one only lasted 30,000 or so Km and fell over completely ( errors immediately on the 808)

I find I have to change every 6 months if I want to stay on top of decent economy. Seen same sort of problem in other cars of ours as well.


My economy has dropped sharpy and about to replace yet again. Any suggestions of decent lasting make?

AC delco any good? is there other brands besides bosch and AC?

bosch narrowbands have always been crap, seen faulty ones out of the box and none of them ever had good crosscounts, stick to delphi mine are still going after a few years with 10+ crosscounts.

well i've never really had any issues with any sensors of mine, LC-1 and MTX-L both using Bosch sensors, also done 240,000kms in my VZ ute and still got the same sensors from the factory lol, from day one to today 10.5-11L/100 every tank.

Holden202T wrote:well i've never really had any issues with any sensors of mine, LC-1 and MTX-L both using Bosch sensors, also done 240,000kms in my VZ ute and still got the same sensors from the factory lol, from day one to today 10.5-11L/100 every tank.

note narrowbands not widebands

ahh ok, well the Ute comments are still valid then

yeh no problems with bosch widebands here, still using mine in my daily, prob 2yrs old now.

The1 wrote:

Holden202T wrote:well i've never really had any issues with any sensors of mine, LC-1 and MTX-L both using Bosch sensors, also done 240,000kms in my VZ ute and still got the same sensors from the factory lol, from day one to today 10.5-11L/100 every tank.

note narrowbands not widebands

the VZ with alloytec 190 uses 2x bosch LSU 4.9 widebands in front of cat and 2x narrowband behind cat... so thats 240,000 k's on lsu4.9 widebands. not a bad run, but the lsu 4.9 are known to be long life.

The1 wrote:yeh no problems with bosch widebands here, still using mine in my daily, prob 2yrs old now.

Yeah Bosch are good at wideband.

The price of the NB might explain why they dont last long. about 45 each.

So get a delphi one? what is the factory brand holden use as I plan to call past and grab a VT 4 wire on the way home.

they are delphi, just badged acdelco

awesome, I will pick up one when I go home. So sick of seeing my gauge go down as I drive.