Code result
P0102
Mass or Volume Air Flow Circuit Low Input
Moderate severity
What it means
The MAF sensor reports an air flow value below the plausible minimum for current engine speed and load. The ECU substitutes a calculated load value while the fault is active.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
MAF sensor failed
highOne of the most commonly reported causes for this code — check this first.
MAF connector loose or disconnected
mediumA plausible cause — test and verify before replacing parts.
Signal wire shorted to ground
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P0102 freeNo credit card required