C0420 Renault Re OBD Code

OBD/2 C0420 error code description and symptoms.

The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke). The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C0420 Renault Re Error Code Repair Process :

The rule of C0420 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of air bag memory clear circuit open. Likewise, overriding the OBD C0420 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Renault Re C0420 OBD2 Code

A common cause of code C0420 is the failure of Air Bag Memory Clear Circuit Open, but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Continuous oil flow to the VCT piston chamber
Fuel Injectors circuit poor electrical connection
Faulty ignition coil (s)

C0420 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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C0420 Renault Re OBD Code

C0420 Renault Re Error Code Repair Process :

Common Causes of Renault Re C0420 OBD2 Code

C0420 code for other Renault cars