Nissan Micra Crankshaft Position Sensor Guide: 2005-2013
Fix stalling, no-start, and rough running issues in your Nissan Micra by understanding and replacing the crankshaft position sensor.
- A failing crankshaft sensor is a primary cause of stalling and no-start problems in the 2005-2013 Micra.
- The most common fault code is P0335; always scan for codes to confirm the issue.
- Replacement is straightforward for a DIYer, with the sensor located on the transmission bell housing.
- Consider premium aftermarket brands like Standard Ignition for better reliability over budget parts.
Is Your Micra Stalling or Hard to Start?
A failing crankshaft position sensor is a common reason for a 2005-2013 Nissan Micra to suddenly stall, struggle to start, or run poorly. Because this sensor provides the master signal for engine operation, a bad signal can cause a wide range of frustrating problems. When it fails, the engine's computer gets confused, leading to incorrect ignition and fuel timing. This guide will help you identify the symptoms, choose the right replacement part, and understand the repair process for your Micra.
Symptoms of a Failing Crankshaft Position Sensor
If your crankshaft sensor is going bad, you will likely notice one or more of these issues:
- Engine Cranks but Won't Start: This is a classic sign. The engine turns over, but the ECU doesn't have the crankshaft position data it needs to start combustion.
- Stalling: The engine may stall unexpectedly, especially when it's warm or at low speeds, like when you're coming to a stop.
- Check Engine Light: A failing sensor will almost always trigger the check engine light and store a diagnostic trouble code, most commonly P0335.
- Rough Idle and Engine Vibration: The engine may shake or idle poorly because of inconsistent spark and fuel delivery.
- Poor Acceleration: Your Micra might feel sluggish or hesitate when you press the gas pedal.
- Reduced Fuel Economy: Inefficient engine timing caused by a bad sensor can lead to your car using more gas than usual.
A Note on Stretched Timing Chains
The 2005-2013 Nissan Micra (K12) can suffer from stretched timing chains. This issue can cause symptoms very similar to a bad crank or cam sensor, including a no-start condition and fault codes like P0340 (Camshaft Position Sensor). If you replace the crankshaft sensor and the problem persists, the timing chain should be inspected by a qualified mechanic.
🎬 Watch this video to see what a timing chain replacement involves.Choosing the Right Aftermarket Sensor
When replacing a critical electronic sensor, the quality of the part matters. While an OEM sensor from Nissan is an option, quality aftermarket parts offer a reliable solution at a better price.
Your choices generally fall into two categories:
- Premium Aftermarket (e.g., Standard Ignition): Brands like Standard Motor Products (SMP) are well-known manufacturers that engineer their parts to meet or exceed OEM specifications. They often use high-quality magnets and advanced circuitry to ensure an accurate and stable signal across all engine speeds. While they cost more than budget options, they are a trusted choice for reliability. Some user reviews note that paying extra for a brand like Standard solved issues that cheaper sensors did not.
- Value-Priced Brands (e.g., True Tech): These brands offer a more affordable alternative. True Tech appears to be a private-label brand, meaning it is likely sourced from a manufacturer and sold under a specific retailer's name. While these sensors can work, the trade-off for the lower price can sometimes be inconsistent quality or a shorter lifespan. For a critical sensor like this, a premium brand is often the safer long-term investment.
Pro Tip: Some owners report that after replacing a failed crankshaft sensor, their car runs perfectly again. However, others have had issues with cheaper, no-name sensors failing quickly or not working correctly out of the box. Investing in a reputable brand like Standard Ignition can save you from having to do the job twice.
Cost of Replacing a Nissan Micra Crankshaft Position Sensor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $51 - $74 |
| Shop Labor | $60 - $120 |
| Total Estimated Cost (DIY) | $51 - $74 |
| Total Estimated Cost (Installed) | $111 - $194 |
Cost estimates are approximate and can vary based on your location and the specific repair shop.
Frequently Asked Questions (FAQ)
Where is the crankshaft position sensor on a 2005-2013 Nissan Micra?
The crankshaft position sensor on the K12 Micra is located on the top of the transmission bell housing, where the engine and transmission meet. It is a 3-pin sensor, often with a green electrical connector, and is held in place by a single 10mm bolt.
Can I replace this sensor myself?
Yes, this is a DIY-friendly job for someone with basic tools. The main challenge is access, as the sensor is in a tight spot. The process involves disconnecting the battery, unplugging the electrical connector, removing one 10mm bolt, and swapping the old sensor for the new one.
🎬 Watch this step-by-step guide to replacing the sensor yourself.What is the main trouble code for a bad crankshaft sensor?
The most common diagnostic trouble code (DTC) is P0335, which means "Crankshaft Position Sensor 'A' Circuit Malfunction." This code is set when the ECU does not receive a signal from the sensor.
🎬 See how to diagnose and fix the P0335 error code.Do I need to replace the camshaft sensor at the same time?
It is not required, but it's not a bad idea. The camshaft and crankshaft sensors work together. On some Nissan engines, replacing both at the same time with parts from the same brand is recommended to avoid communication issues between old and new sensors. Given the age of the vehicle, if one has failed, the other may not be far behind.
Are there any recalls for this part on the Nissan Micra?
No specific recalls for the 2005-2013 Micra crankshaft sensor were found in the NHTSA database, as this model was not sold in the US. However, Nissan has issued recalls for other models due to crankshaft sensors overheating and causing the engine to stall, which mirrors the symptoms seen in the Micra.
Helpful Videos
Technical Specifications
OEM Part Numbers: 23731-4M505 23731-5M016 23731-6J966 23731-BN700
3-pin Hall Effect sensor, typically with a green connector.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Nissan Micra: