T100 Regular Cab Pickup 2WD L4-2693cc 2.7L DOHC MFI (1998)
Mass Air Flow Meter: Testing and Inspection
INSPECTION
Ohmmeter Connection
Reference
1. INSPECT MAF METER RESISTANCE
Using an ohmmeter, measure the resistance between terminals THA and E2.
If the resistance is not as specified, replace the MAF meter
2. INSPECT MAF METER OPERATION
(a) Connect negative (-) terminal cable to battery.
(b) Turn the ignition switch ON.
(c) Connect the MAF meter connector.
(d) Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2.
(e) Blow air into the MAF meter, and check that the voltage fluctuates.
If operation is not as specified, replace the MAF meter.
(f) Turn the ignition switch OFF.
(g) Disconnect negative (-) terminal cable from battery.
(h) Disconnect the MAF meter connector.