Fuel Injection System Diagnostics

Fuel injection ECU carries out continuous checks. The following sensors and components supply fuel injection system ECU with information.

• Mass Airflow Sensor (MAF Sensor)
• Throttle Switch
• Engine Temperature Sensor
• Heated Oxygen Sensor (HO2S)
• A/C Compressor
• Speedometer
• Automatic Transmission ECU
• Ignition ECU, With Signals Indicating:
• Engine Speed And Cooling Fan