C0765 Mazda R OBD Code

OBD/2 C0765 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

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.

C0765 Mazda R Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C0765 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If anti theft horn output circuit short to batt so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the anti theft horn output circuit short to batt.

Common Causes of Mazda R C0765 OBD2 Code

A common cause of code C0765 is the failure of ANTI THEFT HORN OUTPUT CIRCUIT Short to Batt, but there are several other possible causes as well, such as ;

Dirty Oil
Engine Control Module (ECM)
Intake Valve Timing Control Solenoid Valve harness is open or shorted
Faulty Variable Camshaft Timing (VCT) position solenoid

C0765 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.

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

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C0765 Mazda R OBD Code

C0765 Mazda R Error Code Repair Process :

Common Causes of Mazda R C0765 OBD2 Code

C0765 code for other Mazda cars