Hi, My son's late 95 obd2 golf VR6 has just failed MOT on emission, CO on 2nd fast Idle started at 0.8, but after running for 10 mins did drop to 0.24, but quite down to 0.200 so failed! The car had been sitting for 3 years prior to driving it 15 miles to MOT I have cleaned the air filter and will take for a blast on motorway prior to retest, however, ran a diagnostic on the car with following results...please could I have your input to see if this flags up any issues... Absolute Throttle Position ..........3.9% Engine RPM........736 RPM Calculated Load Value ....2.7% Timing Advance (C