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Bad oxygen/lambda sensor earth/ground; Faulty Engine Coolant Temperature sensor (ECT) The engine coolant temperature sensor is located in the coolant flange,(under the distributor on the Polo Fox Coupe) on the front of the cylinder head (on transverse-engine vehicles).
Engine coolant temperature ... Intake air temperature sensor -40 215 °C ... using at least one oxygen sensor but there is a fault in the feedback system
The value read from the map is offset by other environmental factors (such as coolant temperature). This corrected value is then used to meter fuel by pulse-width modulating the fuel injectors. Because each bank of the V8 feeds an exhaust line with its own oxygen sensor , the air/fuel ratio can be monitored and controlled for the banks ...
Adding exhaust gas therefore reduces pressure and temperature during the isentropic compression in the cylinder, thereby lowering the adiabatic flame temperature. In a typical automotive spark-ignited (SI) engine, 5% to 15% of the exhaust gas is routed back to the intake as EGR. The maximum quantity is limited by the need of the mixture to ...
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The fuel injection computer will control injection timing (i.e. fuel quantity) on a number of factors, including temperature. If it's given an incorrect temperature reading, then it will mis-fuel. If the ECU thinks the engine is cold, it will use the cold-start settings, possibly over-fuelling dramatically, with a result of increased HC ...
Delco ECU used in General Motors vehicles built in 1996. An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine.
The Modular Engine Management System, or MEMS, is an electronic control system used on engines in passenger cars built by Rover Group in the 1990s. As its name implies, it was adaptable for a variety of engine management demands, including electronically controlled carburetion as well as single- and multi-point fuel injection (both with and without electronic ignition control).