2013 Audi Q7 POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE

THE VEHICLE HAS PERFORMED POORLY AFTER COMPLETING A US DEPARTMENT OF JUSTICE MANDATED "FIX" OF DIESEL (3.0 LITER TDI, ENGINE CODE CNRB) EMISSIONS EQUIPMENT RELATED TO VW/AUDI EMISSIONS CHEATING. THERE IS NOW SPORADIC LAG IN ACCELERATION, ESPECIALLY AT LOW SPEEDS, OR ACCELERATING FROM A COMPLETE STOP. THERE WERE TIMES WHEN I HAVE PULLED INTO ONCOMING TRAFFIC, AND THE POWER DELIVERY WAS NON-EXISTENT, FOLLOWED BY, AFTER A 1 SECOND DELAY, RAPID OVER ACCELERATION. THERE HAVE ALSO BEEN MANY PROBLEMS RELATED TO THE REDUCTANT METERING MODULE FAILURE THAT HAS CAUSED DANGEROUS DELAYS AND LAGS IN ACCELERATION.