SymbolDescription1Evaporative Emission Canister Sensor2EVAP Canister Purge Regulator Valve3Fuel Pressure Regulator4Engine Coolant Temperature Sensor5Ground Connection6Heated Oxygen Sensor 27Crankshaft Position Sensor8Knock Sensor 29Engine Speed Sensor10Knock Sensor 111Idle Air Control Valve Audi A4 2.8L 1996 Engine Electrical Circuit Symbol Map
