[Pluteos]

Hello all. Ill try to keep this as short and concise as possible :

F22 xDrive w/ N26 purchased 34k miles in 2021
BM3 Stage 2 OTS Map, and supporting mods. (DP + FMIC)

Around 103k engine blew - (bent rod)

Full rebuild- completely new head, turbo rebuild, new TC guides, etc etc

After getting the car back on the road everything seemed fine initially, then the car would start to bog out immediately if you gave more than say 30% throttle, injection would just cut out and if you did not let off fast enough "Drivetrain malfunction" on iDrive with misfiring in at least one cylinder and codes to reciprocate. Pull over and restart - back to normal. I figured the engine was maybe out of time or maybe an injector was bad, something simple.

I ran almost every related diagnostic in ISTA+ I could and found no real outliers. Last time I drove the car I got a low oil pressure message- car has been parked ever since.Thinking maybe new TC guides were not installed properly, and have already broken up and been cycled through the oil pump creating a blockage - or maybe old TC guide pieces are in the oil pump?

Main issue is I am DIYing but no longer have access to a lift (xDrive Car ) so can't really drop the subframe, to drop the oil pan lol

Any help is GREATLY appreciated!

[BringBackButtons]

Only thing that springs to mind is injector not coded for bog down (ecu doesnt know cc of injector) or if you are encountering injector overbore issue.

Good luck, sorry im not much more help.

[Coupsoup]

The oil pumps are known problem on the n20/26. I've replaced several in the last few years for low oil pressure.

Typically it is an intermittent light but the oil pressure is lower than normal. I don't know the spec off top but I've replaced them when they are putting out 34 at idle and I think I got like 20 more psi at idle after replacement?

Its not really possible to mess up the guide installation unless the parts just weren't changed. Chain, guides, tensioner all replaced during rebuild?

If you went to limp mode a code got set, do you know which ones?