B0047 Mercedes S 280 OBD Code

OBD/2 B0047 error code description and symptoms.

Intake Manifold Runner Control Malfunction (Stuck Open) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. The test fails when the signal on the monitor pin is less than an expected calibrated range at closed throttle. IMRC monitor signal circuit shorted to PWR GND or SIG RTN Damaged IMRC actuator Damaged PCM An IMRCM PID reading approximately near 1 volt at closed throttle may indicate a fault.

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.

B0047 Mercedes S 280 Error Code Repair Process :

The scent may B0047 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such B0047, so if the inside of your car o2 sensor circuit slow response (bank 2 sensor 1) as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Mercedes S 280 B0047 OBD2 Code

A common cause of code B0047 is the failure of O2 Sensor Circuit Slow Response (Bank 2 Sensor 1), but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Faulty Intake Valve Timing Control Solenoid Valve
Insufficient cylinders compression
Oil flow restriction in the oil passages or the VCT valve body

B0047 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B0047 Mercedes S 280 OBD Code

B0047 Mercedes S 280 Error Code Repair Process :

Common Causes of Mercedes S 280 B0047 OBD2 Code

B0047 code for other Mercedes cars