Computer Engine Analysis

To meet FEE & FER (Federal Exhaust Emission and Fuel Economy Regulations), All vehicles today are equipped with electronic engine control systems. These systems are preset and do not require adjustments. The only services required are spark plug and filter replacement at regular maintenance schedules.

Engine Control Computer

The computer receives information from a network of sensors and switches that convert engine operating conditions into electrical signals. Based on the information and instructions stored in the computer program, commands are then sent to three primary systems:

• Ignition System
• Fuel System
• Emission Control System

The sensors that monitor one or more of these systems include:

1. Mass Airflow Sensor

2. Throttle Position Sensor

3. Manifold Absolute Pressure Sensor

4. Coolant Temperature Sensor

5. Exhaust Oxygen Sensor

6. Crankshaft Position Sensor

7. Camshaft Position Sensor