I disagree with that. The sensor is a coil of wire, an electrodynamic pickup. I checked one once with an Ohmeter when I installed it on a non-turbo car. It was a fairly low reading, maybe 35 Ohms or something. If you read infinity its been damaged for sure.

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!