What does P1298 mean on a Ford?

P1298. Injector Control Module Internal Fault (Diesel). Applies to F-250/F-350 Super Duty with 7.3L Power Stroke.

What causes P1298 on a Ford?

Internal IDM component failure Water intrusion into the IDM Voltage spike damage Overheating from poor mounting airflow Aging solder joints

How do I fix P1298 on a Ford?

Verify IDM power and ground first Check for water damage and corrosion Rule out every external short before condemning Test with a known-good IDM if available Replace the IDM after external causes are excluded

Code

P1298

Injector Control Module Internal Fault (Diesel)

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: F-250/F-350 Super Duty with 7.3L Power Stroke
Related: No single generic twin. See OBD Codes List

Findings, check these first

Internal IDM component failure
Water intrusion into the IDM
Voltage spike damage
Overheating from poor mounting airflow
Aging solder joints

Standard procedure

Verify IDM power and ground first
Check for water damage and corrosion
Rule out every external short before condemning
Test with a known-good IDM if available
Replace the IDM after external causes are excluded

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

Review: qualified. Read the source limits below.

OBDII.pro: P1298 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1298: IDM Failure
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

Last updated 2026-09-05.

Report a correction for P1298. Include your vehicle, the issue and a source if you have one.

This fault is part of the Ford fuel and ignition codes guide. It covers the family and the order to check it.