Mini R56 Misfire Abnormal Vibration Diagnosis & Repair by G-scan2

This article show a guide on how to use G-scan2 to diagnose and repair BMW Mini R56 engine misfire problem.

 

Trouble Description:

Engine misfire and abnormal vibration form then engine &unstable/rough idle speed.

 

Trouble Diagnose:

Connect G-scan2 to vehicle and select “DIAGNOSIS”

Select correct model:Mini Hatch 2013

Select Drive,DME (Digital Motor Electronics) in order to diagnose engine.

Select “Read fault memory” to check if there is any present DTCs.

This Mini has a ignition coil problem in Cylinder #2.

Select “Diagnosis scan” and “Misfire Detection”,then tap “OK” to continue

As soon as the engine is started,G-scan2 detects the misfire rate in cylinder #2.

Select all item,and tap “Graph”

Now we get the cylinder 1-4 data graph as below

And we can suspect the Coil on cylinder #2 is bad

Now we need to replace the coil for cylinder #2.

After completing cylinder #2 coil replacement,check if we fixed the proble.

Connect G-scan2 again and select correct model& system

 

Erase the DTCs and see if it comes back again

And back to menu to “Diagnosis scan” to check the cylinder 1-4 data graph

You can see the misfire is gone and the idle is more smoother than before.

Done!