Air Charge Temperature Sensors (ACT)
Manifold Air Temperature Sensors (MAT)
Intake Air Temperature Sensors (IAT)
Description: Measures air temperature through changing resistance and sends this information to the onboard computer. The computer uses this and other inputs to calculate the correct amount of fuel delivered.
Symptoms of Failure:
- No Start
- Engine Flooding
- Poor Fuel Economy
- Steady Check Engine Light
Recommended Service: Should be performed every 25,000 to 35,000 miles and consists of cleaning or replacing sensors that are non-functional.