Cot! LoL, I’m folding the seats down and sleeping in the X - maybe it will bring us closer together and she’ll decide to run for me [emoji38]

Agree totally, start spending money, or pull valve covers and be absolutely sure... wasn’t the easiest decision I’ve ever made but I think it was the right one - pull the VCs and just be sure [emoji106]

Ok, closing out this thread.


To summarize, I completed a valve stem seal replacement job on my 05 X5 4.4i using the Speed Works VSS Tool Kit (I didn't actually have to touch the cams or directly affect the timing) - it is very similar to the AGA kit and works the same way. Before the VSS job I had no driveablity issues after the VSS job I couldn't drive it at all.


I continued to receive a 2A89 DME Exhaust Vanos 2 \ P0024 B Camshaft Position-Timing Over-Advanced or System Performance Bank 2 that resulted in a poor idle and the car just flopping on its face if you even considered touching the accelerator.


Trying to diagnosis the issue I:
- swapped vanos, bank 2 intake for exhaust and exhaust for intake
- swapped vanos bank 1 to bank 2, etc
- verified vanos connectors, 12.4v batt side & 3.48v DME side
- tested vanos solenoids w 12v, all clicked
- removed and cleaned the vanos another time
- tested my coil grounds
- swapped plugs
- swapped coils
- swapped cam position sensors, exhaust for exhaust, bank 1 intake for bank 2 exhaust
- verified battery voltage
- verified alternator voltage
- changed the oil (I thought that maybe it didn't like 10w40 now that it had new valve stem seals... don't judge..., the freakin thing is more temperamental than a pregnant woman trapped in a hot elevator! - And you know it's true!
- AND... performed a DME Ram Backup


I performed a DME Ram Backup because with information from this and other forums as well as my indy I thought that it may refresh the DME and reset\release the error codes, I thought my problem was "software".



And none of it worked. So with information from the forum and my indy, I decided that it might be time to take it to the shop and concede my loses...


That said, in one final tear down to verify I had everything right, I think I may have found the cause of all of my problems!


Since I now have an X5 that won't idle and I have a direction to take, I'm going to jump back to:


X won't idel after replacing valve stem seals - receiving misfire codes.

https://xoutpost.com/bmw-sav-forums/...ire-codes.html