Profile: Walker Products, Inc is a manufacturer of fuel system components and engine management devices. Our product line includes carburetor, fuel injection repair kits, oxygen sensors, engine control products such as throttle position sensors, air charge temperature sensors, engine coolant temperature sensors, manifold absolute pressure sensors, fuel injectors & fuel pressure regulators. Our air charge temperature sensor measures air temperature through changing resistance & sends this information to the onboard computer. The computer uses this & other inputs to calculate the correct amount of fuel delivered.