What does P1725 mean on a Ford?

P1725. Insufficient Engine Speed Increase During Self-Test. Applies to All OBD-II Ford vehicles.

What causes P1725 on a Ford?

Throttle not opened when the test prompted Binding throttle linkage Weak engine unable to reach test RPM Vacuum leak limiting RPM rise Failing throttle position sensor

How do I fix P1725 on a Ford?

Re-run the test and follow RPM prompts exactly Check throttle linkage freedom Fix performance faults limiting RPM Verify TPS sweep Confirm the test completes with proper input

Code

P1725

Insufficient Engine Speed Increase During Self-Test

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: All OBD-II Ford vehicles
Related: No single generic twin. See OBD Codes List

Findings, check these first

Throttle not opened when the test prompted
Binding throttle linkage
Weak engine unable to reach test RPM
Vacuum leak limiting RPM rise
Failing throttle position sensor

Standard procedure

Re-run the test and follow RPM prompts exactly
Check throttle linkage freedom
Fix performance faults limiting RPM
Verify TPS sweep
Confirm the test completes with proper input

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: P1725 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1725: Insufficient Engine Speed Increase During Self Test
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

Last updated 2026-09-06.

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