2001 BMW 530 cel

I want to ask what you need from our site, it seems you have made a statement, is there anything else?

seems illogical the code indicates half the engine is malfunctioning and a maf would effect all the engine

The OBDII P codes are sometimes misleading. When dealing with BMW, I usually like to see the manufacturers faults which are in hexadecimal. The P codes can certainly be interpreted to indicate the air mass is at risk and to satisfy my curious nature, I would like to know what the air mass is showing when at idle, it might help guide the diagnostic process.

the fuel trims are somewhat even but slightly elavated 7% b1 9%b2 the cel will only occur during long 65-70mph cruise of nearly an hr. can't find vac leak but still think it is one