What does P1922 mean on a Ford?

P1922. Fuel Additive Level Circuit Malfunction (Diesel). Applies to Ford diesel models with fuel-borne additive systems.

What causes P1922 on a Ford?

Failed additive level sensor Open or shorted level circuit Empty additive tank Corroded additive tank connector Dosing module fault

How do I fix P1922 on a Ford?

Check additive tank level and top off Test level sensor operation Inspect the circuit and connector Verify dosing module communication Replace the sensor after level confirmation

Code

P1922

Fuel Additive Level Circuit Malfunction (Diesel)

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Ford diesel models with fuel-borne additive systems
Related: No single generic twin. See OBD Codes List

Findings, check these first

Failed additive level sensor
Open or shorted level circuit
Empty additive tank
Corroded additive tank connector
Dosing module fault

Standard procedure

Check additive tank level and top off
Test level sensor operation
Inspect the circuit and connector
Verify dosing module communication
Replace the sensor after level confirmation

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

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Last updated 2026-09-06.

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