Pathfinder LE 4WD V6-3.3L (VG33E) (1997)
Mass Air Flow Sensor: Testing and Inspection
COMPONENT INSPECTION
1. Turn ignition switch "ON".
2. Start engine and warm it up sufficiently.
3. Check voltage between terminal (1) and ground.
Conditions / Voltage V
Ignition switch "ON" (Engine stopped.) / Less than 1.0
Idle (Engine is warmed-up sufficiently.) / 1.3 - 1.7
Idle to about 4,000 rpm* 1.3 - 1.7 to / Approx. 4.0
*Check for linear voltage rise in response to increases to about 4,000 rpm in engine speed.
4. If NG, remove mass air flow sensor from air duct. Check hot wire for damage or dust.