Sensor Failure is a negative impact on the performance of your Subaru WRX?
Without powerful electronic management systems, we could also return to the benefit is equal to the Stone Age, rubs stuck trying to make a fire and smashing things with rocks.
As a general rule, which have incorporated most of the electronic components for the Subaru WRX to be extremely reliable in operation, with one notable exception.
The air flow sensor calculates the actual weight of the incoming host for free and is an important parameter in determining used by the ECU todurchrechnen injection and ignition ahead of time. Flash 02, and later provided a built-in function of air mass meter, air temperature sensor, the sensor accuracy improved.
Air mass sensors on the Subaru WRX Version V and VI are equipped cars, a little on the fragile side, especially when used with aftermarket air filter. This type of mass air flow sensor uses a hot film sensor element.
The Subaru ECU monitors the amount of cooling air past the heated surface remote sensing,and from that date, the calculation can be free with a high degree of accuracy the actual weight of the recording. Less desirable is to have the impact of pollution by particles and oil residues on the operation of the sensor.
The Subaru WRX can be sensitive to even small amounts of dust or oil may be sufficient to reduce the sensor output by up to 30-50%, seriously affect operations of the engine. Correct operation can sometimes by careful cleaning of the sensor element with electronic contact cleaner to be restored.But do not use a contact lubricant, as this will make each sensor contamination problems worse.
Cleaning is not always successful, since these sensors do not suffer from cumulative damage. Professional workshops will make a special point of checking this part as part of routine maintenance.
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