On 5 Feb 1998, Andrew Linkens wrote:
> My solution to the problem is to add the heated sensor to a tailpipe extender
> and only use it for checking the tuning of the car from time to time.
Four points:
1. The distance from the extender outlet to the sensor needs to be very
long so that no air reaches the sensor from the outlet.
2. The seal between the tail pipe and your extender must be 100% air
tight.
3. The sensor must be mounted such that the body is exposed to fresh air
at all times.
4. As you note, you would need a heated sensor.
I would imagine it was easier to just mount a standard unheated sensor
permanently. One of the real cruxes of the O2 sensor is that it will give
readings under all engine conditions, not just idle.
Egil
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