The sensor or its circuit has gone open so the control module has no airflow signal.
This generic fault record is not vehicle-specific. Applicability and repair choice must be resolved from vehicle context and test results.
Failed air flow sensor
At a glance
Fault summary
The sensor or its circuit has gone open so the control module has no airflow signal.
SeveritySeverity not yet verified Drive?Depends on the exact symptoms EvidenceSource notes available
- Affected system
- Engine / drivability
- Severity
- Severity not yet verified
- Urgency
- Urgency not yet verified
- Can I drive?
- Depends on the exact symptoms Drivability is governed by symptoms and the approved diagnostic safety layer, not by this generic failure-mode label alone.
- Repair/cost band
- Cost band not yet verified
- Vehicle applicability
- No structured vehicle applicability verified yet
- Evidence/confidence
- Source notes available See source & evidence notes below
Short answer
The sensor or its circuit has gone open so the control module has no airflow signal.
Drive?Depends on the exact symptoms
Can I still drive with this?
Depends on the exact symptoms
Drivability is governed by symptoms and the approved diagnostic safety layer, not by this generic failure-mode label alone.
Common symptoms
- It went into reduced power or limp mode
- It accelerates slowly
Likely causes
- Connector corrosion
Diagnosis checks
Check the air flow sensor reading
Used-car buyer warning
Ask for documented diagnosis and repair evidence; do not infer this fault from one symptom or code.
Repair actions / cost band
Repair action and cost band are not yet verified.
Source & evidence notes
- CarFaultIQ diagnostic failure mode fm_maf_open, manifestation relationships and test effects. Safety review status: pending_human_review. No vehicle-specific prevalence is claimed.