Performance fluctuations in PD115

Hello!

My friend is having problems with his Golf 4.
During driving, the performance fluctuates... similar to a limp mode.
I suspect the LMM (lambda sensor), but the error codes are...?

The error codes in the memory are:

- ABS control unit error:
Sensor for lateral acceleration G200

- Engine control unit error:
Vehicle speed signal - signal too large

Thank you in advance for your help.

Best regards

Wheel sensors?

Have them checked to see if they all give the same readings on a straight road, without any fogging.

The LMM isn't always to blame *g*