Second time testing, first time results were a bit higher. Now they are better but still failing. The car was hot during the testing, so i don't think that was the issue. I have used the X3 pin to tune the air/fuel to as close as .5 according to my multimeter. Before my 2nd test, I changed the plugs, cleaned the idle control valve, checked OVP, Air filter is clean, put 91 premium, and so on. Any other suggestions. I have not used injector cleaner or sea foam on the engine yet. Do you guys think that seafoam will help me pass?

ASM EMISSION TEST RESULTS for 190E 11/26/07

15mph
rpm 1853
% CO2 meas. 14.4
% O2 meas. 0.9

HC (PPM)
max 114
ave 31
meas 147

CO (%)
max 0.73
ave 0.10
meas 0.34

NO (PPM)
max 785
ave 237
meas 1240

Results FAIL


25mph
rpm 1430
% CO2 meas. 14.5
% O2 meas. 0.7

HC (PPM)
max 88
ave 20
meas 74

CO (%)
max 0.61
ave 0.09
meas 0.11

NO (PPM)
max 724
ave 199
meas 847

Results FAIL