P2420 Mercedes-benz 400 OBD Code

OBD/2 P2420 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

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.

P2420 Mercedes-benz 400 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P2420 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 p2420 evaporative emission system switching valve control circuit high 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 p2420 evaporative emission system switching valve control circuit high.

Common Causes of Mercedes-benz 400 P2420 OBD2 Code

A common cause of code P2420 is the failure of P2420 Evaporative Emission System Switching Valve Control Circuit High, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Intake Valve Timing Control Solenoid Valve
Faulty Intake Valve Timing Control Solenoid Valve
Foreign matter caught in fuel filler cap

P2420 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P2420 Mercedes-benz 400 OBD Code

P2420 Mercedes-benz 400 Error Code Repair Process :

Common Causes of Mercedes-benz 400 P2420 OBD2 Code

P2420 code for other Mercedes-benz cars