Delphi ignition knock sensor AS10017 — OE-calibrated detonation sensor, shielded 2-wire, piezoelectric

The Delphi AS10017 is an OE-calibrated ignition knock (detonation) sensor that senses combustion knock and delivers clean, reliable signals to your engine control module for optimized ignition timing and engine protection.

This Delphi knock sensor is built on a century of OE engineering and testing to match factory-level performance and durability. It uses a piezoelectric sensing element that generates its own signal, a ground-isolated two-wire shielded harness to resist electromagnetic interference, and a wide frequency calibration so a single design can reliably detect knock across multiple engine applications and fuel types.

How does the AS10017 detect and report engine knock?

The sensor converts vibration from pre-ignition or detonation into an electrical signal the engine control module interprets to adjust ignition timing. Its piezoelectric element produces a self-generated output, while the shielded two-wire harness and ground-isolated construction help preserve signal integrity under noisy conditions.

• Piezoelectric core provides self-powered knock signal generation.
• Ground-isolated design minimizes electrical noise and false readings.
• Shielded two-wire connector ensures consistent signal transmission.
• Calibrated across a broad frequency range for accurate detection.

Will this sensor work across different engines and fuels?

Delphi engineered the AS10017 with a flat frequency response so the same sensor design performs reliably on multiple gasoline engine applications. It’s calibrated to detect knock events beyond the primary operating range, which helps maintain consistent engine management when fuel composition or operating conditions vary.

• OE-style calibration supports varied engine platforms.
• Wideband frequency response captures different knock characteristics.
• Suitable for engines subject to varying loads and fuel qualities.
• Designed to meet or exceed OE performance requirements.

What installation and compatibility details should I know?

Installation typically involves mounting the sensor to the engine block where it can best sense combustion-induced vibration and connecting the shielded two-wire harness to the vehicle harness. Delphi provides OE-level diagnostics and training resources, but confirm fitment for your specific year, make, and model before ordering.

• Mounts directly to the engine block for optimal vibration sensing.
• 2-wire shielded connector matches OE harness styles on many applications.
• No external power required; sensor is self-generating.
• Always verify part compatibility with vehicle application data.

How does the AS10017 help with emissions and engine management?

By delivering precise knock information to the control module, the sensor helps the ECU adjust ignition timing to promote efficient combustion and protect components from damaging detonation. While not an emissions device itself, its accurate feedback supports engine control strategies that can maintain proper emissions performance.

• Enables ignition timing adjustments to reduce knock risk.
• Supports combustion stability across driving conditions.
• Helps maintain engine operation that aligns with emissions control systems.
• Contributes to consistent performance with varying fuels.

Who is this for: Drivers, mechanics, and DIY enthusiasts looking for a durable, OE-quality knock sensor replacement that restores factory-style knock detection and signal integrity. If you need a robust, calibrated sensor for accurate knock sensing across multiple engine conditions—backed by Delphi’s OE engineering—this part is designed for those seeking dependable performance and straightforward fitment. Note: products purchased through Amazon may be subject to seller-specific warranties; review warranty details with the seller at purchase.