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Originally Posted by droederer
If smoke is pulled passed the sensor would this indicate a bad sensor?
Dave
86 560SL
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No, the opposite.
Normally, air from the cabin is pulled past the sensor. If the hose is broken, or the aspirator fan is not working, there is no air flow over sensor and it will be slow to sense changes in cabin temperature, appearing to be 'lazy' as you observed.
Best Regards,
Jim