Can any one tell me what a suitable distance is for the sensor to have a decent length of life and still be accurate? Does it make much difference?
I've posted the installation spec's below. In a general sense, closer is better, but not so close it overheats (>600°C wrench hex temperature continuous is the critical spec). As-mentioned, it also has a heater allowing you to place it further down the exhaust if you prefer for any reason, such as reading two engine banks for average Lambda/AFR or temporary placement at the tailpipe for dyno use, etc.
Bosch wrote:4.3.1 Design measures:
- Locate sensor as close to the engine as possible, respecting max. allowed temperature range
- The exhaust pipe in front of the sensor must not contain any pockets,
projections, protrusions, edges flex-tubes etc. to avoid accumulation of
condensation water. A downwards slope of the pipe is recommended.
- Make sure, that the front hole of the double protection tube does not
point against exhaust gas stream.
- Attempt to achieve rapid heating-up of the exhaust pipes in the area in
front of the sensor and also of the complete sensor thread boss area, to
avoid developing of condensation water
- The sensor thread boss must be designed as shown in 4.9 to reach a rapid
heat up of the sensor protection tube area. Make sure, that the protection tube is fully reaching into the exhaust gas stream.
thats strange that its no different. Ive just orde[…]
Thanks for the info - is there a particular advant[…]
this should not kill the TC4424, @ 12v through t[…]
thats nice. I'd use that when I find my next proj[…]