TRQ VAPOR CANISTER VENT SOLENOID 42MNFW Q70L
fits make: Infiniti. year: 2015–2019.
( Brand: Trq Vapor Canister Vent Solenoid ), ( Manufacturer Part Number: 42MNFW ), ( Part Type: Vapor Canister Vent Solenoid ), ( Compatible Make/model: Infiniti Q70l ), ( Compatible Years: 2015 2016 2017 2018 2019 15 16 17 18 19 ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )
Review TRQ VAPOR CANISTER VENT SOLENOID Infiniti fits 2015–2019
The **42MN-FW Vapor Canister Vent Solenoid** is a precision-engineered component designed exclusively for the **Infiniti Q70L (Q70) models produced between 2015 and 2019**, ensuring seamless integration with the vehicle s advanced evaporative emission control system (EVAP). This high-performance solenoid serves as a critical control valve within the EVAP system, regulating the flow of vapor from the fuel tank s charcoal canister to the engine s intake manifold during specific operating conditions, such as engine warm-up or idle stabilization. Crafted from durable, corrosion-resistant materials, the solenoid features a robust internal coil and a tightly sealed diaphragm mechanism, which guarantees reliable activation and deactivation under varying thermal and pressure conditions. Its compact yet robust design allows for easy installation, fitting snugly into the designated mounting bracket on the vehicle s underhood area, where it interfaces directly with the vapor canister and the EVAP line. The solenoid operates under the precise control of the vehicle s Engine Control Module (ECM), opening only when commanded to release stored fuel vapors into the intake stream, thereby optimizing fuel efficiency and minimizing harmful emissions. This component is essential for maintaining compliance with stringent emissions regulations while ensuring the Q70L s engine runs smoothly across all driving scenarios. Whether replacing a failed solenoid due to electrical or mechanical wear or upgrading for enhanced performance, this **OEM-quality 42MN-FW solenoid** delivers the precision and reliability expected from Infiniti s high-end luxury vehicles.
### **Pros and Cons of Buying a Vapor Canister Vent Solenoid (42MN-FW, Infiniti Q70L 2015 2019)**
#### **Pros:**1. **Prevents Fuel Odors and Evaporation** The vapor canister vent solenoid regulates evaporative emissions, reducing fuel smells and preventing fuel loss from the fuel tank.
2. **Passes Emissions Tests** A failing solenoid can trigger check engine lights and cause emissions test failures, so replacing it ensures compliance with regulations.
3. **Improves Engine Performance** A malfunctioning solenoid can lead to lean fuel mixtures, rough idling, or reduced power, so fixing it restores optimal engine function.
4. **Prevents Long-Term Damage** If left unaddressed, a bad solenoid can cause carbon buildup in the intake system or damage to the EVAP system components.
5. **Direct OEM Replacement Option** The **42MN-FW** is an OEM part, meaning it matches the original specifications, ensuring reliability and longevity.
6. **Easy Installation** The solenoid is typically located near the fuel tank and is a straightforward plug-and-play replacement, requiring minimal tools.
7. **Cost-Effective Fix** Replacing the solenoid is far cheaper than dealing with secondary issues (e.g., EVAP leaks, fuel system contamination) caused by a failing component.
#### **Cons:**1. **Potential Counterfeit Parts** Some aftermarket solenoids may not meet OEM standards, leading to premature failure or improper function.
2. **Diagnostic Confusion** A failing solenoid can mimic symptoms of other issues (e.g., EVAP leaks, fuel pump problems), requiring proper diagnosis before replacement.
3. **Labor Time (If DIY Unfamiliar)** While simple, inexperienced DIYers may struggle with wiring or securing the solenoid properly, risking improper installation.
4. **Recurring Issues (If Underlying Problem Exists)** If the EVAP system has leaks or damage elsewhere (e.g., hoses, canister), replacing just the solenoid may not fully resolve the problem.
5. **Limited Lifespan** Like all mechanical/electrical components, solenoids wear out over time, and replacement may be needed again in the future.
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### **Conclusion**
The **vapor canister vent solenoid (42MN-FW) for the Infiniti Q70L (2015 2019)** is a critical but often overlooked component. Replacing it is a **cost-effective, straightforward fix** that prevents emissions-related issues, improves drivability, and avoids more expensive repairs down the line. However, ensuring a **high-quality OEM or trusted aftermarket part** and verifying the **root cause of failure** (e.g., no EVAP leaks) are essential for long-term success.
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### **Recommendation**
- **Buy the OEM 42MN-FW solenoid** (or a reputable aftermarket equivalent) from a trusted supplier (e.g., RockAuto, Amazon, or a local auto parts store with return policies).
- **Perform a proper diagnosis** before replacement use an **OBD-II scanner** to confirm the EVAP system fault and check for leaks in hoses or the canister.
- **Follow installation instructions carefully**, ensuring proper wiring and secure mounting to avoid future issues.
- **Consider professional installation** if unsure about handling the EVAP system, as improper sealing can lead to recurring problems.
- **Monitor for recurring symptoms** post-replacement if issues persist, inspect the entire EVAP system for hidden leaks or damage.
**Final Verdict:** Replacing the solenoid is a **wise investment** for maintaining emissions compliance, engine efficiency, and long-term vehicle health. Choose quality parts and ensure proper installation for the best results.
Details:
12 Month Warranty. TRQ Vapor Canister Vent Solenoid fits Infiniti Q70L 2015 - 2019 42MNFW: Brand: condition: New Detailed Applications Years: Vehicle: 2015 - 2019 Infiniti.
part #: 42mnfw prices
- $55.97-$234.95
specifications emissyste:
- for makes: Infiniti
- for years: 2015-2019
- brand: Trq Vapor Canister Vent Solenoid
- mpn: 42mnfw
- part type: Vapor Canister Vent Solenoid
- compatible make/model: Infiniti Q70l
- compatible years: 2015 2016 2017 2018 2019 15 16 17 18 19
- manufacturer warranty: 12 Month Warranty
- attention: Read Full Description To Confirm Fitment
- cs-sku: 400
general emissyste:
- Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
- condition: New
returns emissyste:
- time: 30 Days
- policy: Returns Accepted
- paid by: Seller
seller emissyste:
- rating: 99.1%
- # reviews: 23579
- city: Somerville, Tennessee
payments emissyste:
- other
- wallet: Apple-pay
- credit card: Mastercard
shipping emissyste:
- service: Economy
- transit: 3-7 Days
- class: Economy
- type: Fixed
- cost: $0.00
offer emissyste:
- sold: 0
- quantity: 1
- availability: In Stock
- options: Ship-to-home
- started: March 30, 2026
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