P0311 MERCEDES-BENZ – Cylinder 11 Misfire Detected

 

P0311: DIY Repairing Video Tutorial

https://youtu.be/EG5cAUcUV04

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0311 MERCEDES-BENZ Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Lack/loss of power,Hard start,Engine hesitation  

P0311 MERCEDES-BENZ Possible Causes

  Faulty spark plug 11,Clogged or faulty fuel injector 11,Faulty ignition coil 11,Fuel injector 11 harness is open or shorted,Fuel injector 11 circuit poor electrical connection,Ignition coil 11 harness is open or shorted,Ignition coil 11 circuit poor electrical connection,Insufficient cylinder 11 compression,Incorrect fuel pressure,Intake air leak  

P0311 MERCEDES-BENZ Description

  When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.