Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
Focus 1.0L GTDI,
Focus 2.0L GTDI,
Focus 2.3L,
Fusion 1.5L,
Fusion 2.0L,
KA,
MKC,
MKS 3.5L,
MKT 2.0L,
MKT 3.5L,
MKX,
MKZ 2.0L,
Mustang 2.3L,
Mustang 3.7L,
Navigator,
Taurus 2.0L,
Taurus 3.5L GTDI,
Transit, and
Transit Connect 1.6L, GO to H24 .
For all others, GO to H23 .
H23 CHECK THE FUNCTIONALITY OF THE MASS AIRFLOW (MAF) SENSOR
Note: A MAF PID value of less than 0.6 volt may indicate an incorrectly installed air cleaner or a leak in the air inlet system.
• Ignition ON, engine running.
• Allow the engine to stabilize at the correct operating temperature.
• Access the PCM and monitor the MAF (VOLT) PID.
• Check that the MAF PID at idle and NEUTRAL is not greater than 30% of the normal MAF listed in Section 6 , Reference Values or not greater than 1.3 volts.
Is the PID value within the expected range?
Yes | No |
|---|---|
GO to H24 . |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.