The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP). This is the manufacturer-specific definition used by Chrysler.
Possible causes
- Wiring
- hose leak/blockage
- EVAP leak detection pump
TuningBot DTC Database · v4.37.14
4 manufacturer-specific interpretations across 4 manufacturers in the TuningBot DTC database.
The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP). This is the manufacturer-specific definition used by Chrysler.
The control module registered the fault condition described as "EVAP Ventilation Switch Or Mechanical Fault". This is the manufacturer-specific definition used by Mitsubishi.
The control module detected that the Exhaust gas recirculation (EGR) solenoid valve - signal 2 voltage stayed below the expected range. This is the manufacturer-specific definition used by Subaru.
The control module detected that the EVAP canister purge valve 2 state or value did not match what was expected. This is the manufacturer-specific definition used by Audi.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (4 interpretations). The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP). This is the manufacturer-specific definition used by Chrysler.
P1494 is a manufacturer-specific code. In this database it is documented for: Chrysler, Mitsubishi, Subaru, VAG. The same number can mean something different on other brands.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: EVAP System