What does the BMW 3 Series 2B63 fault code mean?

[VanAngelina]

BMW 3 Series 2B63 fault code. BMW 3 Series 2B63 fault code: Exhaust and intake VANOS swapped. After swapping the left and right camshaft sensors and checking, it still reports exhaust issue, possibly indicating a faulty exhaust VANOS. BMW 3 Series 2A87 fault: DME exhaust, adjustable camshaft control device adjustment exceeds tolerance range. This fault code is set when the camshaft control fails to reach the target position. Low oil supply pressure can cause the adjustable camshaft control device to exceed the tolerance range. 1) If there is abnormal engine noise, focus on checking whether the camshaft bearing seat is worn. If not, check the DME version number. Program status before 05-09-5xx did not include the VANOS solenoid valve cleaning program. Check if the oil cap insert was lost during maintenance. Check if the oil and oil filter are too dirty. Replace both VANOS solenoid valves if necessary.