Dodge Stratus Smog

Have An 04 Dodge Stratus 4cyl. Ck Engine Light On, Manually Reset 2 Times Comes Back On After Only 25 Miles Of Driving But Had Almost No Gas...

My Dodge Stratus Failed Smog Test In The Emissions Part Of The Test. The Timing Function N/a. The No Failed At 15 Mph By 600 Ppn And At 25...

My Car Measured At 25mph. 15.2 On Co2 , .2 On O2, 0 On Hc, .02 On Co, Yet Failed Measuring 1211 On Nox. Could This Be A Egr Problem? It Is...