High pressure when not in use, N12 oil pump

[RacingNight]

Hey there! I own a 07 N12 Mini. My exhaust vanos isn't working. P0014, in my opinion. While attempting to resolve the issue, I saw two things. 1. The oil pressure remains high at idle, at 55 psi, regardless of the temperature. Curious if there would be any problems with this. 2. The exhaust vanos adaptions self-correct to 51 degrees when I disconnect both solenoids. The exhaust adaptation goes out of spec by 34 degrees when plugged in. What do you think?

[MamaKiddo]

The mesh may have collapsed and partially obstructed it, or perhaps the oil solenoid has failed. Someone or something connected to the common 12v (orange wire) supply might be at fault. Another possible cause is an internal breakdown of the vanos sprocket or a stretched chain that is not up to specification.

Could you please tell me the mileage and whether the timing of the TC replacement with a complete OE/OEM kit was considered?

[RacingNight]

127 km. Brand new chain.

[MamaKiddo]

Would you like me to confirm if you only had the chain replaced or if you also had the guides, vanos sprockets, and everything else?

[RacingNight]

The entire set was changed. You seem unique, Vanos. We have strong base timing. For some reason, my adaptation numbers seem to go up when I disconnect the two vanos solenoids. The other peculiarity is the persistently high oil pressure.

[Talentrews]

If the oil pressure is 55 psi, that's great. But how are you measuring it? Also, be careful with cheap gauges; they can be deceiving. 

[Talentrews]

https://www.ebay.co.uk/itm/294721277850?_skw=draper+oil+pressure+test+kit&epid=28030627718&itmmeta=01KTS9VSCAKF8HBE09GQ2Y96MK&hash=item449ec1cf9a:g:~ccAAOSwkl1kMIGi&itmprp=enc:AQALAAAA4GfYFPkwiKCW4ZNSs2u11xAhWEILGqqs4IjZniRZllRAMf9NLGRBODp+WxRfqhqhaKOkSOjsUe8d5N+7YFiqgz4UouNqPZjtcnFseCrNTlvtPTckrIXLuSOWTnW/RCH/uwjey0yTqSRChh1bu/grK1AVRdXx2X9Ao5tQLWQK31UV5ojduMCZ+0dpmCT47iCnWgwPJc/3bEamvxw77WRlXPaFTOZKFY5Bk2usBehxvYrM1aa55tI6FzHrqSzhzkMgQSocjxE3sl06xSH+QUVAKwwtAfmzpMNlwtZbjjpt1QKs|tkp:Bk9SR8SW76nWZw&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338767388&toolid=10001&customid=130832X1595941Xa4bb2509aeb0d7a6c5faf9e71be7fdc2&subId2=15

[Talentrews]

The default positions are 120 and 122 degrees, so when it goes like this, the oil pressure won't move the vanos sprocket and trigger a locked-out camshaft. The usual range for diagnostics-related adaption and spread values is 55 and 150, respectively.
There are a lot of ways in which solenoids might fail; I just had a setback with one that kept loudly knocking at 95 degrees; it turned out that the solenoid was defective—a cheap, crappy one, I think. Only Pierburg or authentic will do from now on.

[MamaKiddo]

That one is great, too. Could you tell me the name of the manufacturer of the kit, chain, and sprockets? We only have to rule out a few things.

Just like Mike mentioned earlier, we also need to consider the end caps, which are BMW terminology for rectangular rings.