P1449 on 2011-2016 Honda CR-Z — EVAP Canister Vent Control Valve
1 vehicles · 1 makes · $1,000-$3,000 repair
Most Reported On
P1449 is an OBD-II diagnostic trouble code meaning “EVAP Canister Vent Control Valve.” P1449 is a manufacturer-specific EVAP emissions code (common on Ford and Mazda) referring to a problem with the EVAP canister vent control valve — sometimes called the canister drain cut valve. This valve opens and closes the charcoal canister's vent to the atmosphere so the system can both breathe and be sealed for leak testing. The PCM sets this code when it detects the valve is stuck, electrically faulted, or otherwise not performing as commanded. It generally doesn't affect drivability but turns on the check engine light and can cause an emissions test failure. Always verify the exact wording against the specific make's service data. This code is most commonly reported on 2011-2016 Honda CR-Z, with repair costs ranging from $1,000 to $3,000.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P1449, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P1449 mean?
P1449 stands for "EVAP Canister Vent Control Valve." P1449 is a manufacturer-specific EVAP emissions code (common on Ford and Mazda) referring to a problem with the EVAP canister vent control valve — sometimes called the canister drain cut valve. This valve opens and closes the charcoal canister's vent to the atmosphere so the system can both breathe and be sealed for leak testing. The PCM sets this code when it detects the valve is stuck, electrically faulted, or otherwise not performing as commanded. It generally doesn't affect drivability but turns on the check engine light and can cause an emissions test failure. Always verify the exact wording against the specific make's service data.
What are the most common causes of P1449?
The most common causes of P1449 are: Faulty or stuck EVAP canister vent control valve/solenoid, Clogged vent valve or canister (dust, dirt, debris), Wiring or connector fault in the vent valve circuit, Damaged or disconnected EVAP hoses/lines, Faulty fuel tank pressure sensor affecting EVAP monitoring, Vacuum leak in the EVAP system, PCM fault driving the valve (rare). The specific cause varies by vehicle.
How much does it cost to fix P1449?
Repair costs for P1449 range from $1,000 to $3,000, depending on the vehicle and root cause.
Which vehicles are affected by P1449?
Au7o has documented P1449 across 1 vehicle models from 1 manufacturers: Honda.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.