Mass air flow sensor fault on my 2011 Nissan Altima 3.5SR, 185,000 miles.

Hey, my name is Dusty and I'm one of the auto experts with RepairPal's Car Genius team here to help! If you're experiencing repeated Mass Air Flow (MAF) Sensor faults, several potential issues could be causing the problem. Common causes include vacuum leaks, dirty/clogged air filters, wiring/connecter issues, aftermarket air filters (especially those that are oiled; if too much oil is used, it can contaminate the MAF sensor, causing it to malfunction), exhaust leaks, ECM issues, incorrect sensor installation, and PCV problems. It's crucial to systematically diagnose the issue and visually inspect the air intake system, vacuum lines, and electrical connections. Using a scan tool to read live data and performing a smoke test can help identify the problem. If needed, consulting a professional with the proper diagnostic tools and expertise may be necessary. If you have any other questions or would like help with finding a RepairPal Certified shop in your area, give us a call! 877-913-1554