5 Best Camshaft Position Sensor WRX Replacements for Your Subaru
If you own a Subaru WRX, you know it’s not just a car; it’s a lifestyle. Keeping that engine purring smoothly and performing at its peak is crucial. One small but mighty component that plays a huge role in your WRX’s engine health is the camshaft position sensor. This sensor helps your engine’s computer (ECU) know exactly where the camshaft is, which is vital for precise ignition timing and fuel injection.
When your camshaft position sensor starts acting up, you might notice your “Check Engine Light” come on, experience rough idling, or even have trouble starting your car. Ignoring these signs can lead to bigger headaches down the road. Replacing a faulty sensor is a straightforward way to get your WRX back to its lively self.
But with so many options out there, how do you pick the right camshaft position sensor for your WRX? We’ve done the legwork to bring you a list of 5 top-rated replacement options, highlighting their features, pros, and cons to help you make an informed decision. Let’s dive in!
Why a Good Camshaft Position Sensor Matters
Your Subaru WRX relies heavily on a properly functioning camshaft position sensor for optimal engine performance. This little gadget tells the engine control unit (ECU) the exact position of the camshaft, which in turn allows the ECU to precisely time the fuel injection and spark plug firing. Think of it as the conductor of your engine’s orchestra, ensuring every component plays its part at the perfect moment.
When this sensor goes bad, your WRX’s engine might stumble, lose power, or even refuse to start. Replacing it with a high-quality unit ensures your engine runs efficiently, maintains good fuel economy, and keeps that grin on your face as you hit the throttle. It’s a critical piece for reliable ignition control and smooth acceleration.
Our Top 5 Camshaft Position Sensor WRX Picks
Here’s our rundown of the best options to consider for your Subaru WRX.
1. A-Premium Engine Camshaft Position Sensor (2015-2016 WRX Focus)
This A-Premium sensor is a solid choice for a range of Subaru and Scion models, including the 2015-2016 WRX (both 2.0L and 2.5L variants). What makes this one stand out is its emphasis on replacing the sensor in pairs, which can save you from repeated repairs and ensures stable engine operation right out of the gate. It’s designed to upgrade your engine performance and maintain that precise ignition timing your WRX craves.
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Key Features:
- Compatible with 2015-2016 WRX H4 2.0L/H4 2.5L and various other Subaru/Scion models.
- Reference Numbers: PC969, 5S13512, 2CAM0338, EC0187, 2351728, 22056AA270, SU00300414.
- 3-Pin Blade Terminal.
- Designed for reliable ignition control and smooth acceleration.
- Comes with a one-year unlimited-mileage guarantee.
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Pros:
- Wide vehicle fitment for various Subaru models.
- Backed by a one-year warranty for peace of mind.
- Promotes stable engine operation, especially when replaced in pairs.
- A good choice for restoring precise ignition timing.
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Cons:
- Requires programming for some Legacy models, though not typically for WRX.
- Specific compatibility check is crucial due to broad fitment.
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User Impressions: Many users appreciate the direct fit and the noticeable improvement in engine smoothness after installation. It’s often praised as a reliable aftermarket option that helps clear the dreaded “Check Engine Light.” Customers highlight its good value for the quality provided.
2. A-Premium Engine Camshaft Position Sensor (Older WRX & WRX STI)
Another strong contender from A-Premium, this sensor is specifically geared towards a slightly different range of Subaru models, including the 2012-2016 WRX and 2013-2019 WRX STI (H4 2.5L). It prides itself on being a direct OE replacement, meaning it’s engineered to fit and function just like the original part. This makes installation a breeze, getting you back on the road faster.
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Key Features:
- Compatible with Subaru WRX 2012-2016 and WRX STI 2013-2019 (H4 2.5L).
- Reference Numbers: 22056AA140, 907847, 907-847.
- 3-Pin Blade Terminal.
- Directly fits as an OE Replacement.
- Backed by a one-year unlimited-mileage guarantee.
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Pros:
- Excellent compatibility for specific WRX and WRX STI models.
- Direct fit design simplifies installation.
- Reliable brand with a good warranty.
- Helps resolve engine stumbling and starting issues effectively.
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Cons:
- More limited vehicle fitment compared to the other A-Premium sensor.
- Always double-check part numbers for exact compatibility.
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User Impressions: Customers frequently report that this sensor resolves their Check Engine Light issues and restores smooth engine operation. The “direct fit” aspect is a big plus, making it a popular choice for DIYers. It’s considered a solid, affordable alternative to OEM parts.
3. Engine Camshaft Position Sensor 22056AA270 Compatible with Subaru (Broad Compatibility)
This particular camshaft position sensor is a versatile option that boasts compatibility with a wide array of Subaru models, including the 2015-2016 WRX, along with Impreza, Forester, Legacy, Outback, BRZ, and XV Crosstrek. Its key selling point is its precision engineering designed to directly replace the original part with plug-and-play installation, requiring no extensive adjustments. Plus, it comes with a generous 18-month warranty.
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Key Features:
- Compatible with 2015-2016 WRX and many other Subaru/Scion models.
- Reference OEM Numbers: 22056AA270, PC969, 5S13512, EC0187, etc.
- Precisely tracks camshaft rotation for optimal spark timing and fuel injection.
- Direct replacement for easy plug-and-play installation.
- Premium, industrial-grade construction for durability.
- Comes with an 18-month worry-free warranty.
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Pros:
- Exceptional warranty period of 18 months.
- Designed for direct replacement, making installation simple.
- High-quality construction promises durability.
- Restores smooth engine performance and fixes related issues like misfires.
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Cons:
- With broad compatibility, careful verification of your vehicle’s specific year/model is essential.
- Generic branding might not appeal to those seeking known names.
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User Impressions: Reviewers often praise this sensor for its perfect fit and ease of installation. Many confirm it successfully eliminates their Check Engine Light and resolves rough idle or starting issues. The longer warranty period is a definite bonus, giving buyers extra confidence.
4. Amrxuts J5T36071 CAM Camshaft Position Sensor (Single for Newer WRX)
For owners of newer WRX models (2017-2021 2.0L/2.5L), this Amrxuts camshaft position sensor is an excellent choice. It’s engineered from high-quality materials to provide extreme durability and a long lifespan. If you’re looking for a single replacement part for your more recent WRX, this one offers a direct fit and comes with a solid 1-year warranty, focusing on robust construction.
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Key Features:
- Compatible with 2017-2021 Subaru WRX 2.0L/2.5L, BRZ, Crosstrek, Forester.
- Part Numbers: J5T36071, J005T36071, 22056-AA280, 22056AA280.
- 3 Pins.
- Engineered from high-quality materials for extreme durability.
- Direct fit for easy installation.
- Includes a 1-year warranty.
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Pros:
- Ideal for newer WRX models (2017-2021).
- Focus on extreme durability for extended life.
- Direct fit design ensures hassle-free installation.
- Reliable performance for critical engine timing.
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Cons:
- Only includes one sensor; some mechanics recommend replacing in pairs.
- Specific to newer models, so older WRX owners need a different option.
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User Impressions: Owners of compatible Subaru models report that this sensor works flawlessly, clearing engine codes and restoring proper engine function. Its direct fit is highly appreciated, and many note its seemingly durable build quality, living up to the product description.
5. Amrxuts 2pcs 22056-AA280 CAM Camshaft Position Sensors (Pair for Newer WRX)
This offering from Amrxuts is essentially the same high-quality camshaft position sensor as the previous one, but with a crucial difference: it comes as a pair of sensors. For those who prefer to replace both sensors at once for preventative maintenance or to ensure balanced performance, this 2-pack is ideal. It covers the same 2017-2021 Subaru WRX 2.0L/2.5L models and promises the same extreme durability and direct fit.
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Key Features:
- Includes 2 camshaft position sensors.
- Compatible with 2017-2021 Subaru WRX 2.0L/2.5L, BRZ, Crosstrek, Forester.
- Part Numbers: J5T36071, J005T36071, 22056-AA280, 22056AA280.
- 3 Pins.
- Engineered from high-quality materials for extreme durability.
- Direct fit for easy installation.
- Includes a 1-year warranty.
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Pros:
- Comes as a convenient pair, ideal for comprehensive replacement.
- Strong focus on extreme durability for long-term reliability.
- Perfect fit for newer WRX models.
- Helps ensure balanced engine performance when both are replaced.
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Cons:
- Might be overkill if only one sensor is confirmed faulty.
- Higher upfront cost than a single sensor.
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User Impressions: Customers who opt for this 2-pack appreciate the value and the peace of mind of replacing both sensors simultaneously. They note the same excellent fit and performance as the single unit, effectively resolving engine codes and restoring smooth operation. It’s a popular choice for thorough maintenance.
Frequently Asked Questions (FAQ)
Q1: What does a camshaft position sensor do in my WRX?
A: The camshaft position sensor is a vital component that monitors the rotational speed and position of your engine’s camshaft. It sends this information to the Engine Control Unit (ECU), which then uses it to precisely time the fuel injection and spark plug firing, ensuring your engine runs efficiently and powerfully.
Q2: What are the common symptoms of a bad camshaft position sensor in a WRX?
A: Common symptoms include the “Check Engine Light” illuminating on your dashboard, difficulty starting your car, rough idling, engine stalling, poor fuel economy, reduced engine power, and sometimes even misfires or rough acceleration.
Q3: Can I drive my WRX with a faulty camshaft position sensor?
A: While your WRX might still run with a failing sensor, it’s not recommended to drive it for long. A faulty sensor can lead to compromised engine performance, increased fuel consumption, potential damage to other engine components over time (due to incorrect timing), and can leave you stranded if the car refuses to start. It’s best to address the issue promptly.
Q4: Is replacing a camshaft position sensor in a WRX a difficult DIY job?
A: For many WRX models, replacing the camshaft position sensor is a relatively straightforward DIY task that can be done with basic hand tools. The sensor is usually located on the cylinder head or engine block and is held in place by one or two bolts. However, the exact location and ease of access can vary by year and engine type, so always consult your service manual or an online guide specific to your WRX.
Q5: Should I buy an OEM or aftermarket camshaft position sensor for my WRX?
A: Both OEM (Original Equipment Manufacturer) and quality aftermarket sensors can be good options. OEM parts are guaranteed to be an exact fit and perform like the original. However, high-quality aftermarket brands, like those reviewed above, often offer comparable performance and reliability at a more affordable price. The key is to choose a reputable aftermarket brand with good reviews and a warranty.
Q6: Do I need to reset my WRX’s ECU after replacing the camshaft position sensor?
A: In most cases, yes. After replacing the sensor, it’s a good idea to clear the diagnostic trouble codes (DTCs) from your ECU using an OBD-II scanner. This will turn off the Check Engine Light and allow the ECU to relearn the correct engine parameters with the new sensor. Some vehicles may automatically clear the light after a few drive cycles if the fault is no longer detected.
Q7: Why do some recommendations suggest replacing camshaft position sensors in pairs?
A: Some vehicle manufacturers and mechanics recommend replacing camshaft position sensors in pairs (intake and exhaust, or both sides if applicable) because if one sensor is failing, the other might not be far behind. Replacing both simultaneously can prevent future issues, ensure balanced performance, and avoid repeat repair work. However, if only one sensor is clearly faulty, replacing just that one is often sufficient.
Conclusion
Keeping your Subaru WRX running in top-notch condition requires attention to detail, and a functioning camshaft position sensor is certainly one of those details. Whether you’re dealing with a frustrating Check Engine Light or just wanting to ensure your engine’s timing is spot-on, a quality replacement sensor is a worthwhile investment.
We’ve covered five excellent options here, each with its own strengths, from broad compatibility to specific fitments for newer models, and options for single or paired replacements. No matter which you choose, make sure to double-check the compatibility with your specific WRX year and model before purchasing. With the right camshaft position sensor, your WRX will be back to delivering that exhilarating driving experience you love in no time!
