chevy cobalt mass air flow sensor problems

As the temperature increases, resistance decreases. The IAT is a thermistor that varies resistance based on temperature. The PCM supplies a 5 volt reference voltage to the Intake Air Temperature (IAT) sensor. The powertrain control module (PCM) monitors the temperature of the air entering the engine. P0113 - Intake Air Temperature Circuit High Input * Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information) * Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. * Inspect for any air leaks near the MAF sensor. * Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires. Then start with the cheapest, easiest repair procedures: The simplest thing to do is to reset the code and see if it comes back. * The vehicle computer may be faulty (very rare) * The MAF may be dirty or otherwise contaminated (Note: if you use a reusable oiled air filter, be careful not to apply too much oil or that can contaminate the MAF). * The MAF may be disconnected, or a wiring connection may be bad You will likely not notice any serious drivability problems, although there may be symptoms such as a general decrease in power or sluggishness.Ī code P0102 may mean that one or more of the following has happened: Other MAF sensor circuit DTC trouble codes are P0100, P0101, P0103, and P0104. A more technical description would be that the MAF circuit had lower than expected voltage (air flow). P0102 OBD-II Trouble Code - Mass Air Flow (MAF) Circuit Low Inputīasically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit.

Chevy cobalt mass air flow sensor problems