Fault Family System: Powertrain (P-Codes) 5 SAE Codes

EVAP Leak Detection Pump Performance

Diagnostic & Technical Explanation

Code P017F (EVAP System Leak Detection Pump Module Air Filter Restricted) sets when the EVAP leak detection pump module's intake air filter is restricted enough that the pump cannot build the reference vacuum/pressure needed to run its leak test. Causes are a clogged or saturated filter element, debris ingestion, or a pump losing output over time.

These 5 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 5 times.

Codes in this family (5)

Code	Definition	Repair coverage
P017F	EVAP System Leak Detection Pump Module Air Filter Restricted	3 ranked fixes
P24C0	EVAP System Leak Detection Pump Switching Valve Stuck On	3 ranked fixes
P24C1	EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off	3 ranked fixes
P2DDA	EVAP System Leak Detection Pump Performance/Stuck Off	3 ranked fixes
P2DDB	EVAP System Leak Detection Pump Stuck On	3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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