It has failed emissions 3 times on seperate days. Test results i have are: Fast Idle test RPM 3010, CO 5.915, HC 335, LAMBDA 0.830 Second fast idle:RPM 2920, CO 6.602, HC 364, LAMBDA 0.808 Natural Idle: RPM 641, CO 11.929. I know the last reading is high but the air flow meter was not on, it is not that high now. I hope this helps you as it is all gaga to me