SX-NEW2 NTK Ngk Ignition Knock Detonation Sensor Sd Mazda

Review NTK 27-66 Ngk Ignition Knock Detonation Sensor For Mazda 2.3l 2.5l L4 Sd for MAZDA 2006–2014

Introducing the NGK C155 27-66 ignition coil and knock sensor, an essential component for maintaining optimal engine performance in Mazda 2.3L and 2.5L L4 SD models produced between 2006 and 2014. This sensor is manufactured by the renowned automotive parts supplier, NGK Spark Plug Co., Ltd.

The NGK C155 27-66 sensor is a crucial element of the engine management system, responsible for detecting and reducing knocking or detonation within the engine. Detonation occurs when fuel in the engine cylinder ignites prematurely, causing unwanted pressure waves that can negatively impact engine efficiency and performance.

This advanced sensor is designed with efficiency and reliability in mind. It features a sophisticated built-in microprocessor that monitors engine conditions and detects any signs of knocking or detonation. Once detected, the sensor sends a signal to the engine control unit, which adjusts the fuel-air mixture and ignition timing to minimize the detonation, ensuring smoother engine operation and improved performance.

The NGK C155 27-66 sensor is specifically engineered for Mazda 2.3L and 2.5L L4 SD engines, ensuring a perfect fit and seamless integration with your vehicle's engine management system. Its robust construction is built to withstand the harsh conditions of the engine bay, providing long-lasting performance and reliability.

By replacing your worn-out or faulty ignition coil and knock sensor with the NGK C155 27-66, you can restore optimal engine performance, improve fuel efficiency, and enhance overall driving experience. This sensor is an essential investment for any Mazda 2.3L or 2.5L L4 SD owner looking to maintain their vehicle's performance and longevity.

The NGK C155 27-66 ignition knock sensor, also known as the NTK C155, is a crucial component of the Mazda 2.3L and 2.5L L4 SD engines from 2006 to 2014. This sensor plays a significant role in engine management systems by detecting and reporting ignition knock or detonation to the engine control unit (ECU). Here are some pros and cons of buying this sensor to help you make an informed decision.

1. Improved Engine Performance: A faulty ignition knock sensor can negatively affect engine performance, leading to misfires, rough idling, and even engine damage. By replacing the sensor, you can restore optimal engine performance.

2. Enhanced Fuel Efficiency: A properly functioning ignition knock sensor helps ensure that fuel is burned efficiently, which can lead to better fuel economy.

3. Preventing Engine Damage: Ignition knock or detonation can cause significant engine damage if left unchecked. Replacing the sensor can help prevent costly repairs down the line.

4. Check Engine Light: A faulty ignition knock sensor can cause the check engine light to come on. Replacing the sensor can help reset the light and prevent unnecessary trips to the mechanic.

1. Cost: Replacing an ignition knock sensor can be an expensive repair, with the part costing around $30 to $70, and labor costs adding to the total.

2. Difficulty of Installation: Depending on your mechanical skills and experience, installing an ignition knock sensor can be a challenging task. Some vehicles may require specialized tools or accessing tight spaces.

3. Potential for False Positives: Modern engines have advanced knock sensors that can be sensitive to even minor engine vibrations. This can lead to false positives, causing the check engine light to come on unnecessarily.

The decision to buy an NGK C155 27-66 ignition knock sensor for your Mazda 2.3L or 2.5L L4 SD engine ultimately depends on the current condition of your vehicle and your personal priorities. If your check engine light is on, or you're experiencing symptoms of a faulty sensor, such as engine misfires or rough idling, then replacing the sensor is a worthwhile investment. However, if your vehicle is running smoothly, it might be best to hold off on the repair until it's absolutely necessary.

If you're experiencing engine issues or your check engine light is on, it's recommended to have your vehicle inspected by a qualified mechanic. They can diagnose the problem accurately and recommend the best course of action, including whether or not replacing the ignition knock sensor is necessary. If you're confident in your mechanical abilities, you can also purchase the sensor online from reputable automotive parts retailers and install it yourself. Always ensure that you follow the manufacturer's instructions carefully to avoid any potential complications.

Details:

Ngk Ntk ignition knock detonation sensor for 2006 - 2014 Mazda 5 2.3l 2.5l l4 sd: status: in stock.

specifications ignitioncomp:

• for makes: Mazda
• for years: 2006–2014
• brand: Ntk
• mpn: Sx-new2
• ipn: C155 27-66
• manufacturer warranty: 3 Years / 36, 000 Miles
• placement on vehicle: Emission Control Sensors
• compatible year: 2014 2013 2012 2011 2010 2009 2008 2007 2006
• core charge: Free No Core Charge
• type: Ignition Knock
• universal fitment: Direct Replacement
• bundle description: 1 Pc Genuine Ngk Ntk Ignition Knock

seller ignitioncomp:

• # reviews: 575719
• rating: 98.9%
• city: indianapolis, indiana

payments ignitioncomp:

• credit card: visa
• other
• wallet: google-pay

shipping ignitioncomp:

• class: standard, expedited
• transit: 2-5 days
• type: fixed
• service: standard, expedited

offer ignitioncomp:

• in stock #: 1
• availability: in stock
• options: ship-to-home
• started: october 2, 2025
• sold #: 17
• price: $39.00
• item condition: New

returns ignitioncomp:

• policy: returns accepted
• time: 30 days
• paid by: seller

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components