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P0102 is a diagnostic trouble code (DTC) for "Engine Trouble Code Inspection & Fix". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $169.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $50.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
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P0102 is a diagnostic trouble code (DTC), also known as Mass Airflow (MAF) Circuit Low Voltage Input. P0102 is the general code for a problem with the Mass Airflow (MAF) Sensor having a low voltage output to the Engine Control Unit (ECU).
The P0102 code is often associated with P0100, P0101, P0103 or P0104 trouble codes as they are closely related.
The MAF Sensor has low voltage output problems which may have several causes including the following:
The following are few common symptoms that are associated with the P0102 code:
A mechanic from YourMechanic will come to you at your convenience to diagnose and fix the P0102 code.
The following are steps that one of our mobile mechanics will take when diagnosing the P0102 code:
P0102 is diagnosed with an OBD- II scan tool. The mechanic will then reset the OBD- II fault codes and road test the vehicle to see if the code returns. They can observe this by watching it live on the scanner while driving.
If the code comes back, the mechanic will need to do a thorough visual inspection to determine if any electrical connector, wiring, sensor, or if the air cleaner is clogged or damaged by the MAF unit.
If no problems are noted, then the next step is to have the mechanic do a circuit test with a multimeter that has a digital display to show sampling rate and sensor range readings to determine if the MAF sensor output is really too low or there is another cause.
Common mistakes made by mechanics when diagnosing and attempting to fix the P0102 code include:
The P0102 code will generally not prevent the car from driving. The MAF sensor issue can cause both limited and excessive fuel consumption, rough operation and difficulty starting in certain circumstances. It is safe to drive with the P0102 code set, but we recommend having a mechanic inspect it at your first opportunity to prevent further troubles.
Occasionally, if no problems are found, reset the fault codes and then retest to see if the warning light and code return. Oftentimes, if the engine warning light comes on immediately at start up, the OBD- II system can be reset and the vehicle will operate normally.
The most common repairs to fix the P0102 code are as follows:
Many vehicles with mileage over 100,000 have momentary MAF sensor problems that usually occur during start up or prolonged stress situations on the drive train.
If the engine warning light comes on and the vehicle seems to be operating normally, the OBD-II system can be reset using the scanner and the problem may not reoccur. This is why it is important to verify the fault and reset it before doing any repairs.
If your P0102 code has recently been set, contact a mobile mechanic from YourMechanic in your area to come perform an inspection and fix the P0102 code.
Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.