B0058 Mercedes-benz B Class Diagnostic Trouble Code
B0058 Mercedes-benz B Class code definition:
B0058 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code for Mercedes-benz B Class.
B0058 Mercedes-benz B Class or the Evaporative Emission Control System Incorrect Purge Flow is the set whenever the computer sees that there is a problem with the flow coming from the purge valve or the purge flow is not enough within the EVAP system. The PCM then uses this data to provide the right strategies for the fuel delivery and ignition timing of the engine.
Symptoms
Symptoms of a B0058 Mercedes-benz B Class diagnostic trouble code may include:
- Lack of power
- Faulty O2 Sensor
- Poor acceleration
- Reduction in engine performance, especially at low RPM levels
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Possible Causes :
- A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
- Some aftermarket accessories and performance modifications
- Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
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Common Misdiagnoses
- Crankshaft Position Sensor Circuit Performance Problem
- TP Sensor Learn Not Complete Problem
- Low Coolant Circuit Problem
- Cruise Control System - Vehicle Accel Too High Problem
- Kick-Down Switch Failed Short Problem
Repair Processes :
With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.
Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.
Process Tips
Diagnostic trouble code B0058 Mercedes-benz B Class is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B0058 Mercedes-benz B Class.
Fortunately, B0058 Mercedes-benz B Class is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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