![]() ![]() Ignition voltage and ground circuits are also supplied to the multifunction intake air sensor internal circuits for the Intake Air Temperature (IAT) sensor 2, Humidity sensor, and MAF sensor. The signal varies with engine load and is displayed by the scan tool as Hertz (Hz) and grams per second (g/s). The sensor uses voltage to produce a variable frequency signal based on the inlet air flow through the sensor bore. The Vehicle Speed Sensor (VSS) in transaxle. Buick LeSabre Limited 1994 - CODES P0501/P0502, VSS CIRCUIT. PCM uses this information to monitor the operating condition of the engine for fuel delivery calculations. #BUICK LESABRE MASS AIR FLOW SENSOR PROBLEMS MANUALS#These manuals will help you deal with any issue you may encounter when changing the Mass Air Flow Sensor on your BUICK. They were created by professional car mechanics. ![]() The ECM applies 5 V to the MAF sensor on the MAF sensor signal circuit. The Mass Air Flow (MAF) sensor measures the flow of air which passes through it in a given time. Tackling replacement of the Mass Air Flow Sensor on your BUICK will be a lot easier using the PDF instructions and video tutorials listed here. A large quantity of air entering the engine indicates an acceleration or high load condition. A small quantity of air entering the engine indicates a deceleration or idle condition. The Engine Control Module (ECM) uses the MAF sensor signal to provide the correct fuel delivery for all engine speeds and loads. The MAF sensor is an air flow meter that measures the amount of air in the sensor bore. I have a 93 Buick Century and I have the same problem with the mass airflow sensor I. Order your parts online or pick them up in-store at your local Advance Auto Parts. My Mass Air Flow sensor and the car was stalling all the time. Check prices & reviews on aftermarket & stock parts for your 2003 LeSabre Air Flow Meter & Mass Air. The Mass Air Flow (MAF) sensor is integrated with the multifunction intake air sensor. Compare 2003 Buick LeSabre Air Flow Meter & Mass Air brands. ![]()
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