The control module's internal test reported the Injection Pump Control Module as faulty. This is the manufacturer-specific definition used by Ford.
TuningBot DTC Database · v4.37.15
P1664 Ford - Injection Pump Control Module Faulty
Manufacturer-specific interpretation for Ford. All interpretations of P1664
What P1664 means
Related and nearby codes
How to read P1664
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1664
What does P1664 mean?
Injection Pump Control Module Faulty. The control module's internal test reported the Injection Pump Control Module as faulty. This is the manufacturer-specific definition used by Ford.
Is P1664 generic or manufacturer-specific?
P1664 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 P1664 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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
