Common Symptoms
- Check Engine Light illuminated
- Intermittent rough idle or stalling
- Hesitation or stumble during acceleration
- Poor fuel economy
- Black smoke from exhaust under load
- Engine may enter limp mode intermittently
Most Likely Root Causes
- Loose or corroded MAF sensor electrical connector
- Damaged or chafed wiring harness to MAF sensor
- Contaminated or failing MAF sensor element
- Intermittent power or ground supply to MAF sensor
- Air intake leak between MAF sensor and throttle body
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Component Location
The MAF sensor is typically located in the air intake duct between the air filter housing and the throttle body.
Manufacturer Notes
Some manufacturers have issued updates for MAF sensor contamination from aftermarket oiled air filters causing intermittent signal issues.
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