P0102 2018 Chevrolet Silverado Code - Mass or Volume Air Flow Circuit Low Input
Quick Answer
The Mass Air Flow (MAF) sensor is integrated with the multifunction intake air sensor. Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0102 2018 Chevrolet Silverado indicates Mass or Volume Air Flow Circuit Low Input.
- Common causes
- Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0102 2018 Chevrolet Silverado Description
The ECM applies 5 V to the MAF sensor on the MAF sensor signal circuit. The sensor uses voltage to produce a variable frequency signal based on the inlet air flow through the sensor bore. The signal varies with engine load and is displayed by the scan tool as Hertz (Hz) and grams per second (g/s). 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 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.
What are the Possible Causes of the DTC P0102 2018 Chevrolet Silverado?
- Dirty Air Filter
- Dirty Mass Air Flow (MAF) Sensor
- Intake air leaks
- Faulty Mass Air Flow Sensor
- Mass Air Flow Sensor harness is open or shorted
- Mass Air Flow Sensor circuit poor electrical connection
How to Fix the DTC P0102 2018 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0102 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0102 2018 Chevrolet Silverado Code
What does the OBDII code P0102 mean on a 2018 Chevrolet Silverado?
P0102 indicates that the Mass Air Flow (MAF) sensor is detecting a low input signal, meaning the airflow reading is below the expected range for proper engine operation.
What are the common symptoms of code P0102 in a 2018 Chevrolet Silverado?
Symptoms may include rough idling, reduced engine performance, poor fuel economy, hesitation during acceleration, and the Check Engine Light being illuminated.
What causes the P0102 code to appear on a 2018 Chevrolet Silverado?
Common causes include a dirty or faulty MAF sensor, a vacuum leak, a damaged MAF sensor wiring harness, or a clogged air filter.
Can a dirty air filter trigger the P0102 code in a 2018 Chevrolet Silverado?
Yes, a clogged or excessively dirty air filter can restrict airflow, causing the MAF sensor to register a low input signal and trigger the P0102 code.
How do you fix the P0102 code on a 2018 Chevrolet Silverado?
Repairs may include cleaning or replacing the MAF sensor, checking for and repairing vacuum leaks, replacing the air filter, or inspecting and repairing any damaged wiring or connectors.
Can you clean the MAF sensor to resolve the P0102 code?
Yes, cleaning the MAF sensor with a specialized MAF sensor cleaner can often resolve the issue if the sensor is simply dirty.
Is it safe to drive a 2018 Chevrolet Silverado with the P0102 code?
While the truck may still be drivable, it might experience reduced performance and fuel efficiency. Prolonged driving without addressing the issue could lead to further engine problems.
How can you test the MAF sensor in a 2018 Chevrolet Silverado?
You can test the MAF sensor using a multimeter to check for proper voltage or by using an OBDII scanner to monitor live data and compare airflow readings to specifications.
Could a vacuum leak cause the P0102 code on a 2018 Chevrolet Silverado?
Yes, a vacuum leak can cause incorrect airflow readings at the MAF sensor, leading to the P0102 code.
Does the P0102 code affect fuel efficiency in a 2018 Chevrolet Silverado?
Yes, the P0102 code can lead to poor fuel economy due to improper air-fuel mixture caused by inaccurate airflow readings.
Discuss the causes and fixes for P0102 2018 Chevrolet Silverado OBDII Code
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