OBD-IIThrottle & Airflow
Throttle & Airflow Fault Codes
Throttle body, MAF sensor, and intake airflow fault codes.
Throttle & Airflow Codes (1)
Diagnostic Approach — Throttle & Airflow
- 1
Check air filter — a restricted filter causes MAF and throttle codes.
- 2
Inspect air intake duct for cracks or disconnections between MAF and throttle.
- 3
Clean MAF sensor with MAF-specific cleaner.
- 4
Check throttle body for carbon buildup — clean if necessary.
- 5
Test MAF output voltage and throttle position sensor with DVOM.
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