Hi guys, just had the car for NCT today and it failed on Exhaust Emissions.

Low Idle CO 0.12 vol% PASS
(699 rpm)

High Idle Lambda: 0.91 FAIL (should be between 0.97 and 1.03)
(2,738 rpm) CO 3.30 vol% FAIL (should be less than 0.20%)

Any ideas?

Thanks for the support