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OBD CODES

CAR OBD CODES



OBD/DTC Search, e.g.P0179

CAR OBD CODES P0179

P0179 OBD Code Definition:
P0179 Fuel Composition Sensor Circuit High Input
P0179 OBD Code Description:

OBD Code P0179

Fuel Composition Sensor Circuit High

What’s mean?

OBD2 Code P0179 Definition:
Fuel Composition Sensors are used to determine the amount of ethanol alcohol in the gasoline. Normally, a gasoline engine should not have more than 10% ethanol alcohol in the fuel for proper operation. Some vehicles have a flexi-fuel system on them that allow them to run on up to 85% ethanol alcohol in the fuel. The fuel composition sensor sends a frequency modulated signal to the engine controller which is proportional to the alcohol content of the fuel. The injector pulse width and the ignition timing are modified for the increased alcohol content. It takes almost twice the amount of alcohol compared to gasoline to produce the same power. Symptoms

Possible sumptoms of P0179
– Engine Light ON (or Service Engine Soon Warning Light) Possible Causes

Possible causes of P0179
– Open or short in FF sensor VPWR circuit – Open in battery ground to FF sensor circuit – Open in FF sensor signal circuit – Short to ground in FF sensor signal circuit – Fuel contamination – Short to VPWR in FF sensor batte Possible Solutions


Note: The information on the P0179 error code is purely informative, if you need more useful information, please consult your technician.

Car brand: :

Ferrari, Maserati, BMW, Mobil, Alfa Romeo, Aston Martin, Audi, Bentley, Chevrolet, Citroen, Dodge, Fiat, Ford, Honda, Hyundai, Infiniti, Jaguar, Bugatti, Cadillac, Jeep, Lamborghini, Lancia, Land Rover, Lexus, Lincoln, Maybach, Mazda, Benz, Mitsubishi, Nissan, Opel, Pagani, Peugeot, Pontiac, Toyota, Volkswagen, Volvo, Porsche, Renault, Rolls - Royce, Saab, set, Skoda, Subaru, Suzuki, etc..

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