Drive with caution — fix soon.
This code means the engine computer detected an intermittent fault in the mass air flow (MAF) sensor circuit, meaning the signal drops out or jumps around now and then rather than constantly. It's usually caused by loose or corroded wiring and connectors, or a sensor that's beginning to fail. Intermittent codes can be tricky to pinpoint, but they're often fixable by repairing connections or replacing the sensor.
$100 – $400
Varies by vehicle and root cause.
Usually yes for short trips, but the intermittent nature means performance can drop unexpectedly. You may feel occasional hesitation or stumbling. Get it diagnosed before the problem becomes constant.
Repairs typically range from $100 to $400. A simple wiring or connector fix is cheaper, while replacing the MAF sensor with labor costs more.
It's moderate. It won't usually cause immediate engine damage, but the inconsistent signal can lead to stalling and poor performance over time, so it's worth addressing.
Intermittent faults usually come from loose or corroded connections that only break contact under vibration or heat. A mechanic will often wiggle-test the wiring and connector to find the weak spot.