What causes P1297 on a Ford?

Melted harness fusing both high-side feeds Gasket connector internal short Pinched harness between valve cover and head Severe chafing IDM fault

How do I fix P1297 on a Ford?

Inspect the full harness for melting or pinching Test high-side isolation bank to bank Replace the gasket harness assembly Reroute the harness away from pinch points Confirm isolation after repair

P1297 Injector High Sides Shorted Together (Diesel)

Q: What does P1297 mean on a Ford?

P1297 — Injector High Sides Shorted Together (Diesel). Applies to F-250/F-350 Super Duty with 7.3L Power Stroke.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: F-250/F-350 Super Duty with 7.3L Power Stroke

What does P1297 mean on a Ford?

P1297 — Injector High Sides Shorted Together (Diesel). This Ford-enhanced code applies to F-250/F-350 Super Duty with 7.3L Power Stroke.

Common causes of P1297

Melted harness fusing both high-side feeds
Gasket connector internal short
Pinched harness between valve cover and head
Severe chafing
IDM fault

How to fix P1297

Inspect the full harness for melting or pinching
Test high-side isolation bank to bank
Replace the gasket harness assembly
Reroute the harness away from pinch points
Confirm isolation after repair