Engine Electrical
Reference Sensor
A reference sensor reports crankshaft or camshaft position so the engine computer knows when to fire the plugs and injectors. We list 31 sensors from $13 to $170 by AC Delco, Standard Motor Products, SKP, Dorman and DIY Solutions, with strong coverage for Chevrolet Corvette plus Mazda Miata, Ram 2500 and Jeep Wrangler.