C0338 Mercedes B 170 Diagnostic Trouble Code
C0338 Mercedes B 170 code definition:
C0338 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code for Mercedes B 170.
C0338 Mercedes B 170 is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. As you drive and when specific conditions are slowly met, the vapors will gradually purge from the charcoal canister and will get burned within your engine.
Symptoms
Symptoms of a C0338 Mercedes B 170 diagnostic trouble code may include:
- Vacuum leak on the engine
- Reduction in engine performance, especially at low RPM levels
- Engine surge
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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Possible Causes :
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
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Common Misdiagnoses
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- Kick-Down Switch Failed Short Problem
- Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit Problem
Repair Processes :
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
Look at the plug wires to make sure they are not burnt or laying on the exhaust.
You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.
Process Tips
Diagnostic trouble code C0338 Mercedes B 170 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 C0338 Mercedes B 170.
Fortunately, C0338 Mercedes B 170 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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