HONDA 17238-MFL-000 Air Valve Solenoid Top Engine Switch Sensor

( Manufacturer Part Number: 17238-MFL-000 ), ( Country Of Origin: Japan ), ( Retail Price: 45.98 ), ( Type: Air Solenoid )

Review HONDA Air Valve Solenoid Top Engine Switch Sensor fits CBR1000RR 1000RR CBR 2008–2011

The **Honda 17238-MFL-000** is a precision-engineered air valve solenoid assembly designed exclusively for the **2008 2011 Honda CBR1000RR Fireblade**, serving as a critical component in the motorcycle s fuel injection system. This high-performance part plays a pivotal role in regulating airflow to the engine s intake manifold, ensuring optimal throttle response, fuel efficiency, and overall power delivery. Crafted from durable materials, the solenoid features a robust stainless steel or high-grade plastic housing, paired with a sealed internal mechanism that resists corrosion and wear, even under the demanding conditions of high-performance riding. The unit is equipped with a **top-mounted engine switch sensor**, which interfaces directly with the motorcycle s ECU (Engine Control Unit) to monitor intake pressure and adjust fuel delivery in real time, enhancing both performance and reliability. This solenoid is integral to the CBR1000RR s **PGM-FI (Programmed Fuel Injection)** system, allowing for precise calibration of air-fuel mixtures across a wide RPM range, from low-end torque to high-revving top-end power. Whether used for maintenance, replacement after failure, or as part of a performance upgrade, this solenoid ensures seamless integration with the Fireblade s advanced electronics, maintaining the bike s reputation for razor-sharp handling and exhilarating acceleration. Built to Honda s exact specifications, it guarantees compatibility with the original wiring harness and mounting points, making it an ideal choice for both professional mechanics and enthusiasts seeking to preserve their CBR1000RR s factory-tuned performance.

### **Pros and Cons of Buying a Honda CBR1000RR (2008-2011) with a Faulty Air Valve Solenoid, Top Engine Switch, or Sensor**

#### **Pros**

1. **Strong Performance and Reliability**

The Honda CBR1000RR (2008-2011) is a well-regarded sportbike known for its powerful inline-four engine, which produces around **140-150 hp** (depending on the year and modifications). It delivers sharp handling, quick acceleration, and a balanced riding experience, making it suitable for both track use and highway cruising.

2. **Durable Engine and Chassis**

Honda s inline-four engine is renowned for longevity, especially when maintained properly. The **1000cc CBR** has a reputation for lasting **100,000 miles** with regular upkeep. The chassis is rigid, providing excellent stability and cornering precision.

3. **Strong Aftermarket Support**

The CBR1000RR has a **large aftermarket community**, meaning parts (including the air valve solenoid, top engine switch, and sensors) are widely available. Tuning options (such as ECU remaps, exhaust upgrades, and suspension modifications) are plentiful, allowing riders to customize performance.

4. **Resale Value**

While not as high as newer models, the CBR1000RR retains a **decent resale value** compared to other sportbikes in its class, especially if well-maintained.

5. **Comfortable for Long Rides**

The ergonomics are well-designed, with a **upright riding position** that reduces fatigue on long journeys. The **suspension (Ohlins or Showa, depending on the year)** is adjustable, allowing for customization to different riding styles.

6. **Fuel Efficiency (Compared to Superbikes)**

While not as efficient as smaller sportbikes, the CBR1000RR averages **around 35-45 MPG** (varies with riding style and conditions), which is reasonable for a high-performance bike.

7. **Track Capable**

The **2008-2011 models** (especially the **2009 with the updated engine**) are well-suited for track days due to their **lightweight (450-470 lbs wet)**, aggressive handling, and strong braking system (Brembo or Nissin calipers).

---

#### **Cons**

1. **Faulty Air Valve Solenoid (Common Issue)**

- The **air valve solenoid** (part of the **AFS Adaptive Front Suspension**) is a known weak point in the **2008-2011 CBR1000RR**.

- **Noisy operation** (whining, rattling)

- **Inconsistent suspension response** (bouncy or sluggish)

- **Complete failure** (suspension locks up or doesn t compress properly)

- **Repair Cost:** Replacing the solenoid (or entire AFS unit) can cost **$300-$600**, depending on whether you DIY or use a shop.

- **Workaround:** Some riders disable the AFS system, but this may affect comfort on rough roads.

2. **Top Engine Switch (Throttle Position Sensor) Issues**

- **Stalling at idle**

- **Poor throttle response**

- **ECU error codes** (e.g., P0120, P0121)

- **Repair Cost:** Replacing the sensor is relatively cheap (**$50-$150**), but if the wiring harness is damaged, additional costs may apply.

3. **Sensor Failures (Oxygen Sensor, Crankshaft Position Sensor, etc.)**

- **Check Engine Lights (CEL)**

- **Misfires or rough idle**

- **Reduced fuel efficiency**

- **Repair Cost:** Sensors are **$50-$150 each**, but labor (if needed) adds to the expense.

4. **Maintenance and Wear Costs**

- The **caliper pistons** (front brakes) wear out quickly and require frequent replacement (**$100-$200 per caliper**).

- **Chain and sprocket wear** is common due to the bike s aggressive nature, requiring **regular adjustments or replacements**.

- **Clutch wear** can be an issue, especially if the rider is aggressive with revving.

5. **Weight and Handling Challenges**

- At **450-470 lbs wet**, the CBR1000RR is **heavier than some competitors** (e.g., Yamaha R1, Suzuki GSX-R1000), making it slightly less nimble in tight corners.

- The **suspension (Ohlins in 2008, Showa in 2009-2011)** can be stiff, leading to **fatigue on long rides** if not properly adjusted.

6. **Electrical Gremlins**

- **Random stalling**

- **Intermittent electrical failures**

- **Difficulty with aftermarket modifications**

- Some riders have experienced **ECU failures**, requiring a **full replacement ( $500-$800)**.

7. **Depreciation**

- While the CBR1000RR holds value better than some sportbikes, it still **loses significant value** over time. A **2008-2011 model** will depreciate more than a newer bike (e.g., 2020 CBR1000RR).

8. **Noise and Vibration**

- The **inline-four engine** is loud, especially at high RPMs, which may not be ideal for urban riding.

- Some riders report **excessive vibration** at certain RPM ranges, which can be mitigated with **balancer adjustments or exhaust modifications**.

---

### **Conclusion**

The **2008-2011 Honda CBR1000RR** is a **fantastic sportbike** for riders who prioritize **performance, reliability, and aftermarket support**. However, **buying one with known issues (air valve solenoid, top engine switch, or sensors) requires careful consideration**.

**Budget for Repairs** If the air valve solenoid, throttle sensor, or other sensors are failing, **factor in repair costs** (potentially **$500-$1,000 ** depending on the extent of issues).

**Maintenance History** Check for **service records** to ensure the bike hasn t been neglected. A well-maintained CBR1000RR can be a **great long-term investment**.

- **Suspension response** (listen for solenoid noise)

- **Throttle smoothness** (check for stalling or hesitation)

- **Electrical stability** (no random warning lights)

**Consider a Used vs. Newer Model** If the **air valve solenoid is a dealbreaker**, look for a **2012 model**, which has an **improved suspension system** (though still not perfect).

**Aftermarket Modifications** If you plan to **tune or modify**, ensure the bike s **ECU and wiring are in good condition** to avoid compatibility issues.

---

### **Final Recommendation**

You are **prepared to budget for potential repairs** (especially the air valve solenoid and sensors).

You **prioritize performance and track use** over long-distance comfort.

You **plan to maintain it well** (regular oil changes, chain adjustments, brake service).

You **find a bike with a clean title and service history** (avoid salvage titles or heavily abused examples).

The **air valve solenoid is already failing** (negotiate a **$200-$400 discount** for its replacement).

The **throttle sensor or ECU shows error codes** (expect to pay for diagnostics and repairs).

The **bike has a history of electrical gremlins** (ask for proof of recent ECU checks).

You **don t have the time or skills** to perform basic maintenance (this bike requires **regular upkeep**).

- **2012 CBR1000RR** Improved suspension (though still not perfect) and slightly better reliability.

- **Yamaha YZF-R1 (2011 )** More advanced electronics, better fuel injection, and a slightly lighter weight.

- **Suzuki GSX-R1000 (2011 )** Strong engine, better ergonomics, and

Details:

This is a air solenoid removed from 2008 2011 Honda CBR1000RR. This air solenoid is in very good condition and shows normal signs of wear. Please Look at all the pictures to see condition of part.

part #: 17238mfl000 prices

• $11.94-$14.65

specifications intakefuelmotorcycle:

• for models: Cbr1000rr, 1000rr, Cbr
• for makes: Honda
• for years: 2008-2011
• mpn: 17238-mfl-000
• country of origin: Japan
• retail price: 45.98
• type: Air Solenoid

general intakefuelmotorcycle:

• condition: Used
• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

offer intakefuelmotorcycle:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 3, 2026
• best offers: True

seller intakefuelmotorcycle:

• city: Houston, Texas
• # reviews: 61135
• rating: 99.8%

shipping intakefuelmotorcycle:

• type: Fixed
• cost: $0.00
• transit: 3-7 Days
• service: Standard
• class: Standard

returns intakefuelmotorcycle:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

payments intakefuelmotorcycle:

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