CRC Mass Air Flow Sensor Cleaner (11 oz.)

Rough idle, sluggish throttle response, and poor fuel economy often trace back to a dirty mass air flow sensor. CRC's MAF Sensor Cleaner is formulated specifically for this job, using their Cozol technology to dissolve oil residue, dirt, and other contaminants that build up on the sensor element over time.

What sets this apart from generic electrical cleaners is the formula — it evaporates quickly and leaves no residue behind, which matters because even a thin film on a MAF sensor can throw off the air-fuel ratio. The 11 oz aerosol can comes with a precision straw for targeted application, so you can direct the spray exactly where it needs to go without overspray on surrounding components. It is safe on plastics and all sensor parts.

Cleaning a MAF sensor is one of the easiest maintenance tasks you can do yourself — just unplug the sensor, give it a few sprays, let it dry, and reinstall. If your check engine light came on with a P0101 or P0102 code, this is worth trying before replacing the sensor entirely.