A6 c6 2.0 tdi Limp mode

[Gavank]

Help appreciated.
After a routine service including air filter change and maf sensor clean I now go into limp mode on start up. No lights are up. EML etc. .Tic over a few mins come out of limp. Switch off back in limp. Pull away and it comes out of limp mode. Car runs very well . Pull over and 93rd start. Back into limp on start up. I`be put a new maf sensor in. No change. .no lights come up when driving. Nothing coming up on scanners.

 

[Darren92]

What are you scanning it with?
Don’t be firing the parts cannon any more, stop now

 

[Gavank]

Local garage kit. Couple of codes came up. Battery and map disconnection. I rebooted after terminal off for 30mins and map disconnected on change over.