DELPHI SX-3909 Ignition Knock Detonation Sensor 1.3L L4

( Brand: Delphi ), ( Type: Ignition Knock ), ( Manufacturer Part Number: SX-3909 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C850 71-30 ), ( Item Height: 1.500 ), ( Item Length: 3.000 ), ( Item Weight: 0.1400 ), ( Placement On Vehicle: Emission Control Sensors ), ( Compatible Year: 2015 2014 2013 2012 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Ignition Knock )

Review DELPHI Ignition Knock Detonation Sensor Scion 1.3l L4 Al fits IQ 2012–2015

Introducing the Delphi SX-3909 Ignition Knock Sensor, specifically designed for 2012-2015 Scion iQ models with a 1.3L L4 AL engine. This advanced sensor plays a crucial role in maintaining the optimal performance and longevity of your vehicle's engine.

The Delphi SX-3909 is an OEM (Original Equipment Manufacturer) quality part, ensuring a perfect fit and reliable operation. It detects and monitors engine knocking or detonation, which can be harmful to your engine if left unchecked. The sensor converts the mechanical energy of engine knocking into an electrical signal, sending this information to the engine control module.

The sensor employs a piezoelectric element, which converts the mechanical energy of engine knocking into an electrical charge. This charge is then amplified and transmitted to the engine control module. The engine control module uses this data to adjust the ignition timing, fuel delivery, or other engine parameters to help prevent further knocking or detonation.

The Delphi SX-3909 Ignition Knock Sensor is built to last, with a robust design and high-quality materials. It is engine-tested to ensure it meets the stringent performance standards of Delphi, a leading global automotive technology company. The sensor also comes with a comprehensive warranty for added peace of mind.

Installing the Delphi SX-3909 is a straightforward process, typically involving removing the old sensor and securing the new one in its place using the provided hardware. Always make sure to follow the specific instructions in your vehicle's service manual to ensure a successful installation.

By replacing your faulty or worn-out ignition knock sensor with the Delphi SX-3909, you can help maintain the performance and longevity of your Scion iQ's engine, ensuring a smoother and more enjoyable driving experience.

The Delphi SX-3909 Ignition Knock Sensor is a potential solution for Scion iQ (2012-2015) owners experiencing issues related to ignition knock or detonation. Let's evaluate its pros and cons to help determine if this part is a worthwhile investment.

1. Designed specifically for the Scion iQ's 1.3L L4 engine, ensuring proper fitment and function.

2. The sensor is known to improve engine performance and durability by accurately detecting and addressing ignition knock, which can lead to improved fuel efficiency and reduced engine wear.

3. Installation is typically straightforward, making it a relatively easy DIY project for those comfortable working on their own vehicles.

4. OEM (Original Equipment Manufacturer) part, ensuring compatibility and quality.

1. The cost of the Delphi SX-3909 Ignition Knock Sensor may be higher than some aftermarket alternatives, which could deter some buyers.

2. Installation requires accessing the engine compartment and disconnecting the old sensor, which may be time-consuming for those without automotive experience.

3. Replacing the sensor does not address any underlying causes of ignition knock, such as worn spark plugs or faulty fuel injectors, so these issues should be addressed separately.

The Delphi SX-3909 Ignition Knock Sensor offers several advantages, such as improved engine performance, durability, and compatibility. However, its price and the time and effort required for installation are potential drawbacks. Ultimately, if you're experiencing ignition knock or detonation issues in your Scion iQ and have the time and resources to install the sensor yourself, it could be a worthwhile investment for maintaining the long-term health of your vehicle. If you're not comfortable with the installation process, consider seeking professional help to ensure a proper fitment and function.

part # sx3909 prices

• $30.43-$141.68

specifications injectiopug:

• for models: Iq
• for makes: Scion
• for years: 2012-2015
• brand: Delphi
• type: Ignition Knock
• manufacturer part number: SX-3909
• manufacturer warranty: 1 Year / 12, 000 Miles
• interchange part number: C850 71-30
• item height: 1.500
• item length: 3.000
• item weight: 0.1400
• placement on vehicle: Emission Control Sensors
• compatible year: 2015 2014 2013 2012
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Ignition Knock

general injectiopug:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts

offer injectiopug:

• started: October 11, 2025
• options: Ship-to-home
• quantity: 2
• sold: 0
• availability: In Stock

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• policy: Returns Accepted
• time: 30 Days

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• class: Standard, Expedited
• cost: $0.00
• type: Fixed
• transit: 4-7 Days
• service: Standard, Expedited

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• # reviews: 579367
• rating: 99.0%

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