C3930 Mazda Cosmo OBD Code

OBD/2 C3930 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C3930 Mazda Cosmo Error Code Repair Process :

If your air suspension rear height sensor low signal circuit open check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C3930 and engine control unit are in charge of monitoring a bunch of different air suspension rear height sensor low signal circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Expert)
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Repair Time (35 Min.)
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Cost Prediction : $ 40-75

Common Causes of Mazda Cosmo C3930 OBD2 Code

A common cause of code C3930 is the failure of Air Suspension Rear Height Sensor Low Signal Circuit Open, but there are several other possible causes as well, such as ;
Wrench Tool C3930 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C3930 code for other Mazda cars

You can view according C3930 DTC for your car model. We selected several models to see obd2 solutions click and view it.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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