Looking for n54 mechanic/expert

Looking for someone qualified and knows these n54 engines.

My oil smells like fuel, yet my spark plugs look like I running lean. Need to validate if one or an other injector is leaking and diluting my oil. If not, how and what is causing my oil to smell like fuel.

I also have smoke that occurs from one tail pipe. This only occurs during idle once engine is warm.

leaky injector will be rough start 99.9% of the time.. A good amount of blowby would also caused fuel into the oil. Leakdown test required, I saw this once and it ate the rod bearings.

If you want to measure AF/Rs and track it down via a dyno that call DynoDoc.