P1102 2002 NISSAN SENTRA - Mass Air Flow Sensor Circuit Range/Performance
P1102 2002 NISSAN SENTRA Possible Causes
- Faulty mass air flow sensor
- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor circuit poor electrical connection
- Intake air leaks
How is the P1102 2002 NISSAN SENTRA code repair?Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
What is the cost to diagnose the P1102 2002 NISSAN SENTRA code
Labor: 1.0The cost to diagnose the P1102 2002 NISSAN SENTRA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?A voltage from the sensor is constantly approx. 1.0V when engine is running.
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine stall
- Engine running rough
- Excessive fuel consumption
- Excessive smoke
P1102 2002 NISSAN SENTRA MeaningThe Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).
The temperature of the hot film is controlled by the ECM acertain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
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