A84676
Voltmeter
Component Side:
Mass Air Flow Meter
05--62
--
DIAGNOSTICS
ECD SYSTEM (1ND--TV)
COROLLA Supplement (RM1129E)
2
CHECK CONNECTION OF VACUUM HOSES
HINT:
(a)
Check the vacuum hose connection of the manifold absolute pressure sensor.
(b)
Check that there is no air leak of the manifold absolute pressure sensor vacuum hose .
OK: The vacuum hoses have been appropriately connected to each other.
NG
REPAIR OR REPLACE VACUUM HOSE
OK
3
INSPECT MASS AIR FLOW METER(VISUAL INSPECTION)
OK: The sensor area of the mass air flow meter has not been contaminated.
NG
REPLACE MASS AIR FLOW METER
OK
4
INSPECT MASS AIR FLOW METER
(a)
Remove the mass air flow meter.
(b)
Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(c)
Using a voltmeter, connect the positive (+) tester probe to
terminal 3 (VG), and negative (--) tester probe to terminal
2 (E2G).
(d)
Blow air into the mass air flow meter.
OK: The voltage fluctuates.
(e)
Reinstall the mass air flow meter.
NG
REPLACE MASS AIR FLOW METER
OK
5
CHECK CHECK INTAKE AND EXHAUST SYSTEM
(a)
Check for air leakage and any blockages between the air cleaner and the turbocharger.
(b)
Check for air leakage and any blockages between the turbocharger and the intake manifold.
OK: No air leakage or blockages.
NG
REPAIR OR REPLACE
OK
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E