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A control loop is permanently monitoring the signal of one or more knock sensors (commonly piezoelectric sensor which are able to translate vibrations into an electric signal). If the characteristic pressure peak of a knocking combustion is detected the ignition timing is retarded by steps of a few degrees.
Knock Sensor - located on engine block; retards timing if pinging/detonation is detected. Heated Throttle Body - heated by engine coolant. The QG18DE is used in the following vehicles: 2000-2006 Nissan Sentra B15 and N16; 2000-2005 Nissan Pulsar N16; 1999-2002 Nissan Primera P11.144; 2002-2007 Nissan Primera P12; 2000-2006 Nissan Almera N16
To detect knock, a piezoelectric knock sensor (basically a microphone) bolted to the engine block responds to unique frequencies caused by engine knock. The sensor generates a small voltage that is sent to the electronic control unit , which processes the signal to determine if, in fact, knock is occurring.
The 3MZ uses a new flat-type knock sensor, which is a departure from the typical resonator type knock sensor used on the previous MZs. Previous MZs had poor knock control, or perhaps oversensitivity when detecting knock, and power loss up to 20 hp (15 kW) may be realized due to erratic ignition timing when using an octane lower than 91. The new ...
A Digifant II DF-1 Engine Control Unit used in '91 Volkswagen Golf Cabriolet with 2E engine. Digifant is an Engine Management System operated by an Engine Control Unit that actuates outputs, such as fuel injection and ignition systems, using information derived from sensor inputs, such as engine speed, exhaust oxygen and intake air flow. [1]
Introduced in October 2005 as an option for the BF Falcon, the Barra 230 introduced dual knock sensors instead of the single knock sensor on the BA Falcon. It also had more aggressive ignition calibration, slight increase in compression ratio, and various ECU modifications to comply with Euro III emissions standards.
The location of the oil pan (sump) varies according to the model the M50 is installed in. ... Engine management is the Siemens MSS50, with 3 knock sensors ...
Fuel level sensor; Fuel pressure sensor; Knock sensor; Light sensor; MAP sensor; Mass airflow sensor; ... Speed sensors are machines used to detect the speed of an ...
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