Quote:
Originally Posted by ottopilot
Don't confuse kitchen ovens with vehicle sensors
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Lol.. Memory served me correctly.. For a change..
"A hot wire burn-off cleaning circuit is employed on some of these sensors. A burn-off relay applies a high current through the platinum hot wire after the vehicle is turned off for a second or so, thereby burning or vaporizing any contaminants that have stuck to the platinum hot wire element."
[ame="http://en.wikipedia.org/wiki/Mass_flow_sensor"]Mass flow sensor - Wikipedia, the free encyclopedia[/ame]