A total of 27 EGR valves have been added to the Sensors' engine management programme and cover more than 1,000 vehicle applications. The component is a vital part of the exhaust system, failure is often caused by a build-up of carbon and dirt which makes the valve stick, replacement is then required. Other sensors available include those for mass air flow, ABS, throttle position, camshaft position and manifold pressure. The entire range and cross references can be found online at www.sensors.uk.com.