Hi John,

Has this been remapped a popular engine for it, we had issues with an 2.0TFSi in an Audi it would log P0303 (from mem) when driving it hard it had been mapped not a problem with the map but the exhaust front pipe on the Audi tightens as it bends just after the turbo an aftermarket system from Milltek cured it , maybe not your problem but worth a check can you see flash status with your scan tool AL will not sure of others?

hth

Rob