EGR Valve
Secondary Air Pump
Thermostat Housing
Oil Cooler
Fuel Pressure Regulator
Blower Resistor
Heater Valve
Ignition Coil
Air Flow Sensor
Headlight Leveling Sensor
Lambda Sensor
Temperature Sensor
ABS sensor
Brake Light Switch
Oil Pressure Switch
Throttle Body
Auxiliary Water Pump

Air Flow Sensor

What They Do
Measure the weight of the air entering the engine. This information is used by the computer to supply the correct amount of fuel.

Failure Symptoms
Hard start, hesitation, stalling. Maintenance/Service Check for trouble codes and tap sensor lightly. Replace if engine stumbles when tapping sensor.