MAF and IAT Sensor On-Vehicle Inspection

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before performing this inspection, be sure to read the "Precautions for ECM Circuit Inspection" under Precautions for Engine .

Check that MAF sensor signal and IAT sensor signal are output properly, see INSPECTION OF ECM AND ITS CIRCUITS .

If faulty condition is found, check the following points:

Wire harness and connections
MAF and IAT sensor, see MAF AND IAT SENSOR INSPECTION .