db3: Check ACT Sensor with Engine Off
| Steps | _Key Off, wait 10 seconds
_Disconnect harness from ACT sensor _DVOM on 200,000 ohm scale _Measure resistance of ACT sensor |
| Result | Is resistance between 1,100 and 58,000 ohms? |
| Direction | YES
GO to Continue NO Check heat stove duct valve operation. If OK, replace ACT sensor. Reconnect harness to 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 |  |