Did you have any luck then? I doubt the DP would have caused limp mode though surely?
Dom switched to Shark Performance as we don't offer a stg2+ on our own software, only REVO (which incidentally also threw EM faults on Doms car)
EM lights after tuning are common and are usually a sign of an underlying problem with the car rather than a fault caused by the software or a new part being fitted. A scan with VCDS should point out the fault that is causing the OP's problems.
I would have agreed with you, but Revo fault codes were engine running lean, caused by the first lambda sensor, new codes are the second lambda sensor with shark performance. I should have went back to superchips
000313 - Oxygen (Lambda) Sensor B1 S2: Response too Slow
P0139 - 004 - No Signal/Communication - MIL ON
004372 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 008 - Implausible Signal - MIL ON