Hi guys have the EML constantly on. fault code readings are (P0140-(0) o2 sensor circuit open (bank 1 sensor 2) fault present.) and (P0130-(0) o2 sensor circuit malfunction (bank 1 sensor 1) fault NOT present).
Engine is running fine doing 328 miles per tank of fuel, replaced both lambda sensors plus cat, once I clear faults EML comes back on within 1/2 a mile with above codes again. Have herd that some times lamda loop needs to be reprogrammed when both are changed notsure.gif .
Anyone got any ideas, as it's driving me mad.