Delphi AS10109 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Toyota and Lexus

The Delphi AS10109 ignition knock sensor is built for vehicles that need accurate detonation detection and stable engine control. It is a direct-fit sensor for select Toyota and Lexus applications, including Toyota 4Runner, Tacoma, T100, MR2, Pickup, and Lexus LS400 and SC400 models.

Delphi calibrates its sensors to OE standards and validates them through stringent development and testing methods. That focus on accurate signal output helps support consistent engine performance and reduces repeat repair concerns.

Key Features

• Ignition knock (detonation) sensor for engine knock detection
• Delphi part number AS10109
• Pin terminal type with 1 male terminal
• 1 round male connector
• Screw mounting type
• No wiring harness included
• No mounting hardware included
• OE-standard testing and calibration

Detailed Product Overview

The Delphi AS10109 is an emission control sensor that monitors engine knock and sends the signal needed for proper ignition timing control. Accurate knock sensing is important for maintaining smooth operation and protecting the engine from detonation-related stress. This sensor is a practical replacement choice for Toyota and Lexus vehicles that require a round, single-connector knock sensor design.

This part cross-references Standard Ignition KS18 and KS94 for the same application. It is commonly searched as a knock sensor for 1992-2000 Toyota 4Runner, 1995-2000 Toyota Tacoma, and 1991-1997 Lexus LS400 applications.

What It Helps Address

• Check engine light related to knock sensor faults
• Incorrect ignition timing caused by poor knock signal input
• Engine pinging or detonation under load
• Rough running from inaccurate sensor readings
• Repeat repairs caused by inconsistent sensor output

Installation Notes and Tips

Verify connector shape, terminal style, and mounting type before installation. This sensor uses a screw mount, a single round male connector, and pin terminals, so matching the original configuration is important for proper fitment. Confirm vehicle application by year, make, and model before ordering.

• Fits 1992-2000 Toyota 4Runner, N/A
• Fits 1995-2000 Toyota Tacoma, N/A
• Fits 1993-1998 Toyota T100, N/A
• Fits 1991-1997 Lexus LS400, N/A
• Fits 1992-1997 Lexus SC400, N/A
• Fits 1992-1995 Toyota MR2, N/A
• Fits 1992-1995 Toyota Pickup, N/A

Quality Assurance

Delphi sensors are developed and validated to OE standards, with testing and calibration focused on accurate readings and reduced comebacks. The AS10109 reflects that OE-oriented approach for dependable replacement performance.