Heated oxygen sensor

[Wolfman1505]

I still have to reset the car to its defaults settings. Just to little time these days.
But i noticed a little aprovement. CEL doesnt always licht up now.
It wil on longer trips but i had a few shorst trips without the CEL burning.

I have also read that the exhaustpipe could couse the HOS to give a fail signal. I know i have a little hole in the pipe.
I dont know the englisch name, but its the thick part in the middel under the car.
Could that explain the HOS acting up to?

[nicke66]

Originally Posted by Wolfman1505

I I know i have a little hole in the pipe.
I dont know the englisch name, but its the thick part in the middel under the car.
Could that explain the HOS acting up to?

I have also noticed a small hole at the same place in my cars exhaust piping. First I thought I was going to replace the complete exhaust system in the near future, then I realize the hole was there from the factory, to drain the exhaust system from water...

Anyway, a small hole in the system in this position does not influence the HOS in the exhaust manifold. If the hole was bigger, it could influence emission measuring at the end of the exhaust system.