db4: Check ACT Sensor with Engine Running
| Steps | _Key Off
_Harness disconnected from ACT sensor _DVOM on 200,000 ohm scale _Run Engine for 2 minutes _Measure resistance of ACT sensor with engine running |
| Result | Is resistance between 2,400 and 29,000 ohm? |
| Direction | YES
Replace processor. Reconnect harness to ACT sensor. Rerun Quick Test NO Check heat stove duct valve operation. If OK, replace ACT sensor. Rerun Quick Test |
| Component | Air Charge Temperature Sensor |
| Description | The ACT provides the EEC with mixture (air and fuel) temperature information. The ACT is used both as a density corrector to airflow calculation and to proportion the cold enrichment fuel flow. |
| Location | Threaded into the lower intake manifold. |
| Wire Colors | Black with White stripe
Pink with Black stripe |
| Image |  |