Hi folks my car failed its test on Emissions its a 2.2 sri
heres the first failure readings
engine speed measurement was by-passed
engine oil temperature was by-passed
fast idle
CO - 0.524% - FAIL
HC - 47 ppm - PASS
Lambda - 1.211 - FAIL
2nd Fast Idle
CO - 0.697% - FAIL
HC - 60ppm - PASS
Lambda - 1.189 - FAIL
Natural Ide
CO - 0.421% - PASS
2nd readings after full service new rear lambda sensor fitted
fast idle
CO - 0.623% - FAIL
HC - 70 ppm - PASS
Lambda - 1.286 - FAIL
2nd Fast Idle
CO - 0.462 - FAIL
HC - 42ppm - PASS
Lambda - 1.090 - FAIL
Natural Ide
CO - 0.499% - PASS
does anyone have any idea what could cause this? what would need replaced or how i could find out whats wrongs with it...The airflow meter works ok , no eml light on yet