| CAUTION | If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. |
Circuit Description
EGR valve position sensor is mounted on EGR valve and monitors EGR valve pintle position. EGR valve pintle position is dependent upon engine operating conditions. Possible cause is
- EGR valve position sensor.