Revitalize Your Ride: Top 10 Camshaft Position Sensor Miata Picks
Hey fellow Miata enthusiasts! If you’ve ever experienced your beloved roadster acting a bit… off, like sputtering, stalling, or showing a persistent “Check Engine” light, there’s a good chance your camshaft position sensor Miata might be sending you a cry for help. This tiny but mighty component is absolutely crucial for your Miata’s engine management system, telling the ECU exactly where your camshaft is at any given moment. This precision ensures optimal fuel injection and ignition timing, keeping your ride running smoothly and efficiently.
When this sensor goes bad, it can throw your whole engine out of whack, leading to poor performance, reduced fuel economy, and even a no-start situation. But don’t fret! Replacing a faulty camshaft position sensor Miata is a common fix, and choosing the right one can make all the difference. We’ve scoured the market to bring you a comprehensive list of the top 10 sensors and related timing components that will get your Miata back to its peak performance, ready for those spirited drives.
Why Your Miata Needs a Reliable Camshaft Position Sensor
Think of your Miata’s engine as a finely choreographed dance. The camshaft position sensor (CPS) is like the choreographer, constantly relaying the camshaft’s exact rotational position and speed to the engine’s computer (ECU). This data is vital for precise fuel delivery and spark timing, ensuring every combustion cycle is as efficient as possible. Without accurate information from the camshaft position sensor Miata, your ECU struggles to make these critical decisions, leading to a host of problems.
Common symptoms of a failing CPS include:
- Difficulty starting: The engine might crank but won’t catch.
- Rough idling or stalling: Your Miata might feel shaky or just die unexpectedly.
- Poor acceleration: A noticeable hesitation or lack of power.
- Engine misfires: The car feels like it’s sputtering or skipping.
- Reduced fuel efficiency: You’re filling up more often than usual.
- “Check Engine” light: Often accompanied by specific error codes like P0340.
It’s important to note that while we’re focusing on the camshaft position sensor, your Miata also relies on a crankshaft position sensor. Both work in tandem to provide the ECU with a complete picture of engine timing. Some of the products below might even be crankshaft sensors, but they are equally vital for your engine’s precise operation. Let’s dive into our top picks!
Top 10 Camshaft and Crankshaft Position Sensors for Your Miata
Here’s our curated list of sensors designed to get your Miata running its best:
1. Walker Products 235-1233 Camshaft Position Sensor
Walker Products brings a strong contender to the table with their 235-1233 Camshaft Position Sensor, engineered to meet or even exceed original equipment (OE) specifications. This sensor is designed for direct fit replacement, meaning you won’t need to struggle with modifications. It aims to restore your Miata’s fuel economy and overall engine performance, making it a solid choice for those looking for reliability without breaking the bank.
- Walker Products Camshaft Position Sensor / Crankshaft Position Sensor is manufactured to meet and exceed OE Fit, Form, and Function
- OE Direct Fit Replacement
- Improved fuel economy and engine performance
- Original Equipment (OE) Number: BP4W18230, ZJ1018221
Pros:
– Designed for direct OE fit and function
– Aims to improve fuel economy and performance
– Common OE part numbers cross-referenced for compatibility
Cons:
– Some users might prefer an OEM branded part directly from Mazda
– Product description also mentions “Crankshaft Position Sensor” which could cause slight confusion if strictly looking for a camshaft sensor.
User Impressions: Many users praise Walker Products for their consistent quality and easy installation, often noting a significant improvement in engine smoothness and the disappearance of lingering check engine lights related to sensor issues. It’s often seen as a reliable aftermarket alternative.
2. A-Premium Engine Camshaft Position Sensor Compatible with…
A-Premium offers a robust solution specifically compatible with Mazda Miata models from 1999-2005 (1.8L L4). This sensor stands out with its comprehensive cross-reference list of OE and aftermarket part numbers, ensuring wide compatibility. It’s built as a brand-new OE replacement, promising a straightforward installation and a return to optimal engine timing and efficiency for your beloved Miata.
- Compatible with Mazda Miata 1999-2005 L4 1.8L
- Reference Numbers: PC360, 5S1336, 2CAM0248, EC0172, 2351233, BP4W18230, J5T12181, ZJ1018221, 907833
- Specification: 3 Pins, Blade Terminal, Black Color, 1x Camshaft Position Sensor
- Directly Fit: OE Replacement Brand New Camshaft Position Sensor
- One-year unlimited-mileage guarantee
Pros:
– Specific vehicle fitment listed for Miata (NB generation)
– Extensive list of compatible reference numbers
– Comes with a reassuring one-year unlimited-mileage guarantee
– Direct OE replacement for easy installation
Cons:
– No specific material details beyond “black color” for durability assessment in the features list.
User Impressions: Customers frequently commend A-Premium for their value and reliable performance, often mentioning that the sensor worked perfectly out of the box and resolved their Miata’s engine timing issues, restoring smooth operation.
3. Spectra Premium MZ39 Crankshaft Position Sensor
While our main focus is the camshaft position sensor Miata, it’s vital to remember the crankshaft position sensor’s equally important role. Spectra Premium delivers a top-notch crankshaft position sensor, meticulously tested for corrosion resistance and durability against extreme temperatures and vibrations. Leveraging OE expertise, each unit is designed and tested to match original equipment requirements, ensuring your Miata’s engine management system receives precise crankshaft data for optimal performance.
- Salt spray tested for highest possible resistance to corrosion
- Designed along OE requirements by an expert team
- Tested in its designated vehicle for high quality, stability, and reliability
- Manufactured based on Canadian engineer’s in-depth knowledge of original parts
- Durability tested with long-cycle thermal shock test (-5 to 3F and -50 to 300 Degree)
- Road tested to ensure real-world performance
- Engineered to stringent tolerances
Pros:
– Extremely rigorous testing (salt spray, thermal shock, road test) for durability
– Designed to OE fit, form, and function
– High resistance to corrosion and extreme temperatures
– Reliable for accurate crankshaft position readings
Cons:
– This is a crankshaft position sensor, not a camshaft, so ensure you diagnose the correct faulty sensor before purchasing.
User Impressions: Reviewers often highlight Spectra Premium’s commitment to quality, reporting that these sensors perform reliably over time, solving crankshaft-related engine issues and ensuring stable engine operation.
4. SMMS Engine Camshaft Position Sensor for Mazda MX-5 Miata…
The SMMS Camshaft Position Sensor offers a targeted solution for 1999-2005 Mazda MX-5 Miata owners. What makes this sensor stand out is its emphasis on material quality, utilizing heat-resistant thermoplastic and corrosion-resistant metal alloys, which are crucial for longevity in the engine bay. This robust construction, coupled with its precise function in optimizing combustion efficiency, makes it a reliable choice for restoring your Miata’s smooth performance.
- Vehicle Fitment: Mazda MX-5 Miata L4 1.8L 1999-2005
- OE Number: BP4W18230, ZJ1018221, J5T12181, 5S1336, S10241, SU4349, 2CAM0248, J005T30772, SK907833
- Functions: Monitors camshaft position/speed for precise fuel injection, optimizing combustion efficiency
- Specification: Made from heat-resistant thermoplastic and corrosion-resistant metal alloys for durability
- Service: 30-day return, 12-month warranty
Pros:
– Specific fitment for the Miata model years
– Uses high-quality, durable materials (heat-resistant thermoplastic, corrosion-resistant metal alloys)
– Clear explanation of its function and importance
– Generous 12-month warranty for peace of mind
Cons:
– Being a lesser-known brand, some users might prefer more established names.
User Impressions: Users appreciate the direct fit and how effectively this SMMS sensor resolves common Miata issues like erratic idling and starting problems, often praising its build quality for the price point.
5. A-Premium Engine Crankshaft Position Sensor Compatible with…
A-Premium makes a second appearance on our list, this time with their Engine Crankshaft Position Sensor, also compatible with the 1999-2005 Mazda Miata. Just like their camshaft sensor, this product promises a direct OE replacement fit, simplifying installation. With a focus on compatibility and peace of mind through a one-year unlimited-mileage guarantee, this sensor ensures your ECU gets accurate crankshaft data, essential for your Miata’s precise engine timing and consistent performance.
- Compatible with Mazda Miata 1999-2005 L4 1.8L
- Reference Numbers: ZL01-18-221, ZL0118221
- Specification: 3 Pins, Blade Terminal, Black Color, 1x Crankshaft Position Sensor
- Directly Fit: OE Replacement Brand New Crankshaft Position Sensor
- One-year unlimited-mileage guarantee
Pros:
– Specific Miata fitment (1999-2005, 1.8L)
– Direct OE replacement for easy installation
– Backed by a one-year unlimited-mileage guarantee
– Critical component for engine timing alongside the camshaft sensor
Cons:
– Again, this is a crankshaft sensor, so verify which sensor is actually failing in your Miata before ordering.
User Impressions: Similar to their camshaft sensor, A-Premium’s crankshaft sensor receives positive feedback for its seamless fit and ability to resolve engine timing-related issues, helping Miata owners get their cars running smoothly again.
6. DAOKACUO BP4W-18-230 BP4W18230 907-833 ZJ1018221 PC360…
The DAOKACUO sensor is a multi-compatible option designed for a range of Mazda Miata MX-5 models from 1998-2005. This product distinguishes itself by not only listing numerous compatible part numbers but also by offering clear performance benefits, such as enhancing vehicle performance and resolving diagnostic trouble codes. Its focus on reliability, direct replacement, and easy, tool-free installation aims to simplify the sensor replacement process for Miata owners.
- Compatible with part no.: 907-833, BP4W-18-230, ZJ1018221, J5T12181, PC360, SU4349, 5S1336, 235-1233
- Vehicle Fitment: Compatible with MAZDA MIATA MX-5 1998-2005
- Warranty & Support: One-Year Quality Guarantee
- Product Features: Reliable and stable performance, built for durability, 100% tested before shipment, high-quality materials, precision-engineered for easy, tool-free installation, secure packaging
- Performance Benefits: Enhances vehicle performance and resolves diagnostic trouble codes; direct replacement, no calibration or programming required.
Pros:
– Extensive cross-reference list of OE part numbers
– Clear performance benefits highlighted (resolves DTCs, enhances performance)
– Promotes easy, tool-free installation
– Comes with a one-year quality guarantee
Cons:
– Generic brand name might raise questions about long-term reliability for some users.
User Impressions: Customers report that the DAOKACUO sensor is a functional and cost-effective replacement that successfully clears check engine lights and restores their Miata’s performance without the need for complex calibration.
7. OCPTY Camshaft Position Sensor Camshaft Sensor Fits 1999…
OCPTY provides a straightforward and DIY-friendly camshaft position sensor for 1999-2005 Mazda Miata owners. This sensor is designed with a “plug-and-play” ethos, meaning no special tools are needed for installation, making it accessible even for those with limited mechanical experience. It directly addresses common symptoms of a failing sensor, offering itself as a clear solution to irregular stalling, difficult starting, and other engine performance woes.
- Compatible Models: Camshaft position sensor for 1999-2005 for Mazda Miata
- Part Number: 5S1336, PC360
- Plug-and-play design: No special tools needed, DIY-Friendly, short installation time
- Advantages: Solves issues like irregular stalling, difficult starting, engine vibrations, stumbles, accelerator hesitation, slow acceleration.
Pros:
– Very user-friendly “plug-and-play” design
– Directly targets common sensor failure symptoms
– Specific Miata fitment
– Easy installation, even for DIYers
Cons:
– Lacks detailed material specifications or specific warranty information in the listed features.
User Impressions: DIYers particularly appreciate the OCPTY sensor for its ease of installation and direct compatibility, often finding that it quickly resolves their Miata’s performance issues, getting them back on the road without a fuss.
8. AIP Electronics Camshaft Position Sensor CPS Compatible…
AIP Electronics delivers a 100% new construction camshaft position sensor designed as a high-quality OEM replacement part. This sensor aims for direct fit and guaranteed quality right out of the box, meaning you should be able to install it without any hiccups and expect reliable performance. For those seeking a dependable aftermarket solution that mimics the original, AIP Electronics offers a solid choice for your camshaft position sensor Miata needs.
- Manufacturer: AIP Electronics
- 100% New Construction
- High Quality OEM Replacement Part
- Fit and Quality Guaranteed
- Ready for Install Straight out of the box
Pros:
– Brand new construction ensures no pre-existing wear
– Promises OEM replacement quality and fit
– Ready to install out of the box
– Generic fitment implies broad Miata compatibility for the specified sensor type.
Cons:
– Specific Miata model years are not explicitly listed in the provided features, requiring users to double-check compatibility.
User Impressions: Users generally report positive experiences with AIP Electronics, finding their sensors to be reliable and a good value, effectively resolving sensor-related check engine lights and restoring smooth engine operation in their vehicles.
9. SCITOO 5S1336 Camshaft Position Sensor 2PCS Fit for…
SCITOO offers a compelling package by including two camshaft position sensors in their offering, making it an excellent value if you need a spare or are working on multiple Miata projects. This sensor is designed to tackle those frustrating issues like starting difficulties and engine misfires by ensuring accurate acquisition of camshaft position signals. It promises improved engine performance, faster start-up times, and quick response to acceleration commands, allowing your Miata to unleash its full potential.
- Compatible Vehicles: Engine Camshaft Position Sensor for 1999-2005 Mazda Miata
- Function: Effectively solves vehicle starting difficulties, engine misfire/vibration, and unstable idling.
- Advantages: Accurate camshaft position signal acquisition, timely fuel injection/ignition timing control, improved engine performance.
- Performance: Unique sensor response accessory feeds engine cylinder 1 compression top dead center position recognition back to the ECU for faster start-up time; quick response to commands.
Pros:
– Comes in a 2-pack, offering great value
– Specific Miata fitment (1999-2005)
– Focuses on solving common engine performance issues
– Aims for faster start-up and acceleration response
Cons:
– If you only need one sensor, the second might be redundant for some users.
User Impressions: Customers appreciate the two-pack value, often stating that the SCITOO sensors fit well and effectively solve their Miata’s rough running or starting issues, making it a budget-friendly option for peace of mind.
10. 269 Motorsports Camshaft CAM Position Sensor REPAIR HARNESS…
Sometimes, it’s not the sensor itself but the wiring harness that fails, causing intermittent or consistent issues. 269 Motorsports provides a dedicated Camshaft CAM Position Sensor REPAIR HARNESS, specifically for 1999-2005 MAZDASPEED and standard Miata models. This 3-wire connector pigtail is an invaluable solution for fixing frayed, corroded, or damaged wiring that connects to your camshaft position sensor Miata, ensuring a secure and reliable electrical connection without needing to replace the entire engine harness.
- 3 Wire Cam Position Sensor Connector Pigtail
- For MIATA MAZDASPEED, 1999-2005 Models
Pros:
– Addresses a common point of failure (wiring harness, not just sensor)
– Specific fitment for Miata and Mazdaspeed models (1999-2005)
– Cost-effective alternative to replacing the entire wiring harness
– Essential for ensuring proper signal transmission from the sensor.
Cons:
– This is a repair harness, not a sensor itself, so it won’t fix a bad sensor.
– Requires some wiring work (splicing) for installation.
User Impressions: Miata owners who’ve struggled with intermittent sensor issues often find this repair harness to be a lifesaver, providing a solid connection and eliminating frustrating electrical gremlins that mimic sensor failure.
What to Look For When Buying a Camshaft Position Sensor for Your Miata
Choosing the right sensor is key. Here’s a quick guide:
- Vehicle Compatibility: Always double-check that the sensor specifically fits your Miata’s year and engine (e.g., 1999-2005 1.8L). Many manufacturers list compatible OE part numbers, which is a great way to confirm.
- OEM vs. Aftermarket: While OEM parts guarantee a perfect fit and performance, quality aftermarket options can offer significant savings without sacrificing reliability. Look for brands with good reputations and strong warranties.
- Build Quality: Sensors operate in harsh engine environments. Look for descriptions mentioning durable, heat-resistant, and corrosion-resistant materials.
- Warranty: A good warranty (e.g., 1-year, unlimited mileage) provides peace of mind in case of a defect.
- Camshaft vs. Crankshaft: Be certain which sensor is failing. An OBD-II scanner can help identify specific diagnostic trouble codes (DTCs) that point to either sensor (e.g., P0340 for camshaft, P0335 for crankshaft).
Installation Tips
While some sensors are “plug-and-play,” replacing your camshaft position sensor Miata can vary in difficulty depending on your specific model year and engine bay access.
- Safety First: Always disconnect the battery before working on electrical components.
- Consult Your Manual: Your Miata’s service manual will have specific instructions and torque specs.
- Clear Codes: After replacement, use an OBD-II scanner to clear any stored trouble codes. This will turn off the “Check Engine” light.
- Test Drive: Take your Miata for a spin to ensure the new sensor has resolved the issues.
FAQ Section
Q1: What does a camshaft position sensor do in a Miata?
A1: The camshaft position sensor (CPS) monitors the exact rotational position and speed of your Miata’s camshaft. This data is critical for the engine control unit (ECU) to precisely time fuel injection and ignition spark, ensuring optimal engine performance and efficiency.
Q2: What are the common symptoms of a failing camshaft position sensor in a Miata?
A2: Common symptoms include difficulty starting, rough idling, frequent stalling, engine misfires, poor acceleration or hesitation, reduced fuel economy, and the illumination of the “Check Engine” light, often accompanied by error codes like P0340.
Q3: Can I drive my Miata with a bad camshaft position sensor?
A3: While your Miata might run with a faulty CPS, it’s not recommended. Driving with a bad sensor can lead to decreased performance, poor fuel efficiency, potential damage to other engine components (due to incorrect timing), and an unreliable vehicle that could leave you stranded.
Q4: How can I test my Miata’s camshaft position sensor?
A4: The easiest way to test it is with an OBD-II scanner to check for specific diagnostic trouble codes (DTCs) like P0340. For a more in-depth test, you would use a multimeter or oscilloscope to check the sensor’s voltage output and signal pattern while the engine is cranking or running. This often requires knowledge of the sensor’s wiring diagram.
Q5: Is replacing a camshaft position sensor a DIY job for a Miata owner?
A5: For many Miata models, replacing the camshaft position sensor can be a relatively straightforward DIY job, especially if you have basic tools and some mechanical experience. The sensor is usually located on the valve cover or engine block. However, always refer to your specific Miata’s service manual for exact location and procedure.
Q6: What’s the difference between a camshaft position sensor and a crankshaft position sensor?
A6: Both are vital for engine timing. The camshaft position sensor tracks the position of the camshaft (which controls valve opening/closing), while the crankshaft position sensor tracks the position of the crankshaft (which controls piston movement). The ECU uses both signals to know exactly where the engine’s internal components are at all times, ensuring precise fuel delivery and ignition timing.
Q7: Will replacing the camshaft position sensor turn off my “Check Engine” light?
A7: Yes, if a faulty camshaft position sensor was the sole cause of your “Check Engine” light, replacing it and then clearing the stored trouble codes with an OBD-II scanner should turn off the light. If the light remains, there might be other underlying issues.
Q8: How much does a camshaft position sensor replacement typically cost for a Miata?
A8: The cost of the sensor itself can range from $20 to $100+ for aftermarket or OEM parts. If you’re doing it yourself, that’s your only cost. If you take it to a mechanic, labor costs can add another $50-$150, depending on the shop and complexity.
Conclusion
A properly functioning camshaft position sensor Miata is absolutely essential for keeping your iconic roadster running at its best. Whether you’re experiencing annoying check engine lights, rough idling, or a noticeable drop in performance, identifying and replacing a faulty sensor can bring back that joyful, zippy feeling your Miata is known for. With the top 10 options we’ve reviewed, you’ve got a solid starting point to choose a reliable replacement. So, pick the one that fits your needs and budget, get it installed, and get back to enjoying those open roads!
