Montero Sport ES 2WD L4-2.4L SOHC (1999)
Air Flow Meter/Sensor: Testing and Inspection
INSPECTION PROCEDURE USING AN ANALYZER
VOLUME AIR FLOW SENSOR
Required Special Tool:
MB991709: Test Harness
Measurement Method
1. Disconnect the volume air flow sensor connector, and connect the test harness special tool (MB991709) in between. (All terminals should be
connected.)
2. Connect the analyzer special patterns pickup to volume air flow sensor connector terminal 3.
Alternate method (Test harness not available)
1. Connect the analyzer special patterns pickup to ECM terminal 90.
Standard Wave Pattern
Observation conditions
Standard Wave Pattern
Observation conditions
Race engine, observe T1 and T2 remain equal.