Throttle Position Sensor Inconsistent with Mass Air Flow Sensor
Ford · engine
Data confidence80%
The control module detected a fault associated with the Throttle Position Sensor Inconsistent with Mass Air Flow Sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
121
Specific fault index within the subsystem.
Frequently asked questions about P1121
What does P1121 mean?
Throttle Position Sensor Inconsistent with Mass Air Flow Sensor. The control module detected a fault associated with the Throttle Position Sensor Inconsistent with Mass Air Flow Sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.
Is P1121 generic or manufacturer-specific?
P1121 is a manufacturer-specific code. In this database it is documented for: Ford. The same number can mean something different on other brands.
Can TuningBot remove P1121 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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