Airflow Meter
Remove rubber cover from electrical connector on airflow meter. Leave connector connected. Connect volt/ohmmeter between terminals and record readings. See AIRFLOW METER RESISTANCE table. If readings are not to specifications, check electrical wiring. If wiring is okay, replace airflow sensor.
NOTE:
DO NOT
start engine during this test. Place the ignition switch in the "OFF" or "ON" position as indicated.
AIRFLOW METER RESISTANCE
| Ignition Switch | Wire Colors | Readings | |||
|---|---|---|---|---|---|
| SPFI | |||||
| Off | Black-Ground | 0-10 Ohms | |||
| On | Red-Ground | 10 Volts Min. | |||
| On | White-Black | (1) .1-.5 Volts | |||
| MPFI Non-Turbo | |||||
| Off | Black-Ground | 0-10 Ohms | |||
| Off | Brown-Ground | 0-10 Ohms | |||
| On | Red-Ground | 10 Volts Min. | |||
| On | White-Brown | (1) 1-2 Volts | |||
| MPFI Turbo | |||||
| Off | Black-Ground | 0-10 Ohms | |||
| Off | Brown-Ground | 0-10 Ohms | |||
| On | No. 2-Ground | 10 Volts Min. | |||
| On | No. 5-Brown | (1) 1-2 Volts | |||
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