Airflow Sensor
NOTE:
Airflow sensor malfunctions may set Code 61 or 62. For additional information, see TESTS W/CODES - 2.3L & 2.6L
article.
- Pull back rubber boot on airflow sensor harness connector. With ignition off, check for voltage between Violet wire terminal and ground. Voltage should be less than .2 volt. If voltage is incorrect, check wiring to ECM. Repair as necessary.
- Turn ignition on. With engine off, check voltage between Red wire and ground. Voltage should be 10-14 volts. With ignition off, voltage should be less than .2 volt. If voltage is incorrect, check wiring to ECM. Repair as necessary.
- With engine idling, check voltage between White wire and ground. Voltage should be 0.5-2.0 volts. If voltage is incorrect and voltage insteps 1) and 2) was okay, replace airflow sensor.
- Check airflow sensor by-pass circuit. See Fig 1 . If circuit t is dirty or contaminated, clean with carburetor cleaner. DO NOT let carburetor cleaner touch electrical or rubber components.