P04EF - EVAP System Very Small Leak Detected - Fresh Air Side
P04EF is a generic powertrain diagnostic trouble code indicating EVAP System Very Small Leak Detected - Fresh Air Side. It relates to the Auxiliary Emission Controls system.
DTC Breakdown (SAE J2012)
| System | Powertrain (P) |
| Type | Generic |
| Subsystem | Auxiliary Emission Controls |
| Fault Index | EF |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code P04EF mean?
The dtc/">diagnostic trouble code P04EF represents EVAP System Very Small Leak Detected - Fresh Air Side. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
Detailed diagnostic guides and specific fix procedures for code P04EF are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about P04EF
What does P04EF mean?
The diagnostic trouble code P04EF represents EVAP System Very Small Leak Detected - Fresh Air Side. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
What is the system for P04EF?
The P04EF code is located in the vehicle's Powertrain network.