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JR
CONNECTING TUBE (Continued)
CONNECTOR TUBE ROUTING
CONNECTOR TUBE ROUTING
MASS AIR FLOW SENSOR
DESCRIPTION
The Mass Air Flow Sensor(MAF) is mounted on the
air pump bracket. There is a filter assembly mounted
to the MAF.
OPERATION
Airflow is measured by the MAF sensor. A voltage
will be produced via the MAF sensor when air is
passed through. Changes in air flow and air density
cause the temperature of the ceramic element to
fluxuate. The ceramic element changes resistance
respectively to changes in temperature. This voltage
correlates to airflow. The change in resistance varies
the signal voltage output to the PCM.
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove the air pump assembly, (Refer to 25 -
EMISSIONS CONTROL/AIR INJECTION/PUMP -
REMOVAL).
(3) Remove 2 bracket mounting bolts (Fig. 13).
Fig. 13 MOUNTING BRACKET BOLTS
(4) Remove the bracket assembly (Fig. 14).
Fig. 14 REMOVE/INSTALL ASSEMBLY
AIR INJECTION
25 - 33
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