Help with error codes

[crunchy_frog]

Can one of you help with error code diagnostics?

I have an 08 e92 with 94k km on it. Car runs fine except for the CEL light on and an 'Increased Emissions' warning in idrive

my suspicions are
-gas cap- i re-tighten it again
-fuel rail pressure sensor
-o2 sensors going bad

// 1) 277B Tank cover message
// 2) 27AB Lambda adaption at VKAT stop bank 2
// 3) 2B39 Combustion misfire with cut-out cyl 5
// 4) 2B3A Combustion misfire with cut-out cyl 6
// 5) 2B3B Combustion misfire with cut-out cyl 7
// 6) 2B3C Combustion misfire with cut-out cyl 8
// 7) 2B41 Combustion misfire with cut-out several cyl
// 8) 2B57 Motor emergency programm activated
// 9) 2796 Motor emergency programm activated

[TheGulf1]

Mine had many of the same errors last week (cylinder misfires on banks 1,2,3,4 and Lambda sensor failure on bank 1). The last couple of errors you show I also had. My M went into limp mode and the engine would not go over 4500RPM. I went to the dealer and they diagnosed a bad idle air solenoid. It was replaced under warranty. So far, so good.

[crunchy_frog]

was it the idle control valve or solenoid? can you reply with the part number that was replaced
thx

[crunchy_frog]

ok
took it in for diagnosis and it turned out to be an exhaust leak. The technician had to replace the right side exhaust gasket ring as it was totally worn out breaking the seal and causing leaks and cylinder misfires on the entire right side.

I'm not sure how this seal can "wear out" but I speculate with the expand and contraction of metal, the seal would break down and disintegrate.

It wasn't too bad, took them about one hour-ish to replace the gasket(s)