Om651 cyinder 3

[Mark73]

Hi, few weeks ago I was driving on motorway and my car (r172 2014 - 63000miles) starts shaking under load. I made it in workshop, checked injectors and found nr. 3 stuck, after few hours fight I removed that, install refurbished one and coded it. Since that having night mare. Intermittent black smoke and engine light on, lack power, shacking on idle. Sometimes better sometimes worse. Pulled code is P047128 even after replacing with new Febi part. Smoothness operation of cylinders is 10, 9, - 30 and 7 no matter how I move injectors around. Could someone light the bulb on the end of tunnel for me please?

 

[alexanderfoti]

Do a compression test!

If moving the injectors around doesn't change your -30 smooth running value on number 3 then it's not fuel related.

 

[Mark73]

Hi Alexander,
thank you for your reply. Compression test runs on Thinktool PRO scanner shows differences just up to 5. I replaced all injector connectors, i done all applicable learning / teaching processes and nothing changed.
Would you have some advice please?
Thank you
Mark