626 LX L4-2.0L DOHC (1999)
Air Flow Meter/Sensor: Testing and Inspection
Using the SST (104 Pin Breakout Box)
1. Check the mass air flow sensor for damage and cracks.
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If there is damage or cracks, replace mass air flow sensor.
2. Disconnect the PCM Connector.
3. Connect the SST 104 Pin Breakout Box to the PCM as shown.
4. Tighten the connector bolt.
Tightening torque: 7.9 - 10.7 Nm (80 - 110 kg.m, 69.5 - 95.4 in.lb.)
5. Measure the voltage at the PCM terminal 88 as shown in the table.
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If not as specified, inspect the following harness continuity and terminal voltage.
1. Harness continuity
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Between PCM terminal 88 and mass air flow sensor terminal E
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Between PCM terminal 36 and mass air flow sensor terminal D
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Between PCM terminal 103 and mass airflow sensor terminal C
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Between main relay terminal E and mass air flow sensor terminal B
2. Terminal voltage
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Mass air flow sensor terminal B voltage:
Battery positive voltage
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Mass air flow sensor terminal C voltage:
Below 1.0 V
6. If the terminal voltage is correct and there is harness continuity, replace the mass air flow sensor.
