4.
Specification
1)
450 ~ 510 mg/stroke (without EGR operation)
2)
280 ~ 360 mg/stroke (with EGR operation)
☞ CURRENT DATA
IG Key : ON
Actual value for evaluation
Engine warm up at approx. 80℃(176℉), engine idling
Check items with the scan tool
Mass air flow current data
Wavefoam from MAFS
Specification
450 ~ 510 mg/stroke (without EGR operation)
280 ~ 360 mg/stroke (with EGR operation)
☞ CURRENT DATA
IS MASS AIR FLOW CURRENT DATA DISPLAYED PROPERLY ?
YES
Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared.
Check for intermittent fault by observing the data parameter for a sudden change while wiggling the wiring and tapping lightly on the suspect component.
Be careful not to damage wires or components during the test.
Repair as necessary and go to " Verification of Vehicle Repair " procedure.
NO
Go to " W/Harness Inspection " procedure
