This part Monitors the throttle opening and closing for the ECU to adjust the fuel flow. Failure symptoms Hesitation, emissions failure flat spot or stalling when at a stand still.
Weekly Tip: Oxygen Sensor also known as a Lambda sensor, This unit monitors the oxygen content of exhaust gas to help maintain the correct Air/Fuel ratio in petrol cars.this ensures the catalytic converter is working at maximum efficiency.
Weekly Tip: Map Sensor, also known as Manifold pressure sensor, load sensor and BARO sensor. The Map sensor senses and signal the ECU, changes in atmospheric pressure and/or engine vacuum so the computer can control the fuel and ignition operation for varying altitude conditions and engine loads. Should be checked every 25,000 miles. Failure symptoms are poor engine operation back smoke, surging and catalytic converter over heating.