on a 99 4Runner.
Jul 21, 2006 at 8:01 AM
1999 Toyota 4Runner Airflow Meter Issues
JAZZYME1973
- MEMBER
- 3 POSTS
Advertisement
Another name for Mass Air flow Meter. Mass flow meters measure flow rate in units of mass flow, for example, lbs/min.
When they go bad, they can cause stalling, or unstable idle. Improper fuel air mixture, along with low power output. Usually they set an engine code, and run around $80-$100 for the part to replace.
When they go bad, they can cause stalling, or unstable idle. Improper fuel air mixture, along with low power output. Usually they set an engine code, and run around $80-$100 for the part to replace.
Jul 21, 2006 at 9:23 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement
parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Suggested Repair
Treat the airflow meter as a mass air flow (MAF) sensor. If it fails, expect stalling, unstable idle, a poor air-fuel mixture, and low power, often with a stored engine code. Scan for codes and replace the MAF sensor if faulty; the part is typically about $80 to $100.
Conversation Summary
The owner of a 1999 Toyota 4Runner asked what an airflow meter is and what happens when it fails. The expert explained it is a mass air flow meter that measures airflow by mass. A bad unit can cause stalling, unstable idle, an improper fuel-air mixture, and low power, and it usually sets a code. Replacement parts commonly cost about $80 to $100.