Overview Reviews Product Description Flex Fuel Composition Sensor SUITS: 3/8 "GM Spring Lock" fittings. INCLUDES: Matching plug and 3 pins. Product Videos Custom Field Product Reviews Write a Review Write a Review × HALTECH Flex Fuel Composition Sensor Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *