The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the MAF Sensor Signal is less than 850 Hz (about 1.43 g/s) for greater than 10 s. It should be considered a high priority to fix, as the MAF sensor not reading properly can really make an impact on the performance of the vehicle. We will cover exactly what that means and potential fixes for it below. Most auto repairs shops charge between 75 and 150 per hour. Novemby Jason With the Chevy HHR, P0101 means the the Mass Air Flow (MAF) sensor has a Range/Performance problem. We hChevrolet HHR vehicles for sale that are reported accident free, 20 1-Owner cars, and 38 personal. Replacing the coolant temperature sensor or thermostat. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Here are ways to fix P0172 code fuel too rich: Cleaning the mass air flow sensor and oxygen sensors. 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 cost of diagnosing the P0102 CHEVROLET code is 1.0 hour of labor. 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 ECM applies 5 V to the MAF sensor on the MAF sensor signal circuit. 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. The Mass Air Flow (MAF) sensor is integrated with the multifunction intake air sensor.
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