QDB-4A Car Ignition Coil Tester Support Fault Detect

Introducing the QDB-4A, a next-generation multifunction tester designed to diagnose and drive automotive ignition coils, fuel injectors, solenoids, idle speed stepper motors, and related actuators. Featuring a large display, enhanced usability, and broad voltage and duty-cycle control, this instrument is ideal for professional repair shops, training labs, and vehicle manufacturers.

Key Features at a Glance

• Versatile driving and testing capabilities: ignition coils, fuel injectors (gasoline 12V and diesel 12-24V), solenoids, metering valves, and motors driven by various duty cycles.
• Idle and actuator testing: supports idle speed stepper motors, instrument stepper motors, headlight height adjustment stepper motors, and other automotive actuators.
• Hall sensor compatibility: adjustable output frequency, amplitude, and duty ratio to simulate various duty-cycle sensors (e.g., AC pressure sensors, air flow meters).
• Broad power and protection: operates from 12–24V with reverse polarity protection and overcurrent protection.
• High-precision output: electromagnetic coil driving current range 0–3.5A; output frequency from 1 Hz to 100 kHz; duty cycle adjustable from 1% to 100%.
• Flexible voltage and interface options: adjustable output voltage 1.25V–11.5V; DMM range DC 0–30V/0–1M; PWM 1–100 kHz / 0–100%; Step Motor support up to 15A.
• Portable and practical design: compact size (17 x 9.8 x 2.8 cm) with a lightweight build (~175 g) and a colorful box packaging.

What Can the QDB-4A Do?

Drive and Test Ignition Coils

• Supports multiple ignition coil configurations: single ignition coils, group ignition coils, and independent ignition coils.

• Ideal for evaluating coil output, waveform consistency, and drive efficiency under various loads and duty cycles.

Drive and Test Fuel Injectors

• Compatible with gasoline-powered 12V injectors and diesel injectors operating at 12V or 24V.
• Enables precise testing of injector spray patterns, opening/closing times, and fuel delivery consistency.

Drive and Test Solenoids and Valves

• Suitable for solenoids and fuel metering valves controlled by various duty ratios, enabling stable performance checks.

Drive and Test Motors

• Tests motors controlled by diverse duty cycles, including ureia (DEF) pump motors and other automotive actuators.

Idle Speed and Stepper Motors

• Comprehensive support for idle speed stepper motors, instrument stepping motors, and related automotive actuators like headlight height adjustment motors.

Hall Sensor Simulation

• Adjustable output frequency, amplitude, and duty ratio to emulate duty-cycle sensors (e.g., air conditioning pressure sensors and air flow meters).

Electrical and Safety Specifications

• Power Input: 12V–24V DC (typical automotive supply)
• Power Output: 0–2.5A
• Voltage Adjustment (VADJ): 0–1.5A output
• DMM Range: DC 0–30V / 0–1M
• PWM: 1–100 kHz / 0–100%
• Step Motor Current: Up to 15A
• Product Size: 17 x 9.8 x 2.8 cm
• Weight: About 175 g (1 set ~0.39 kg with packaging)
• Protection: Reverse polarity and overcurrent protection for safe operation

What’s Included

• 1 x QDB-4A unit
• 1 x Power cable
• 3 x Test connection cables
• 4 x Single plugs
• 1 x Idle speed stepper motor plug
• 1 x Stepper motor welding cable
• Packaging: Colorful box

OBD-4A: Multifunctional Test Capabilities

The QDB-4A family expands on core testing with comprehensive capabilities, including:

• Drive and test ignition coils (independent, group, and modular types)
• Drive and test fuel injectors (gasoline engines and diesel common-rail systems)
• Drive and test idle stepper motors and headlight height adjustment stepper motors
• Drive and test various automotive motors and solenoids
• Emulate Hall sensor duty cycles for sensors like air conditioning and air flow meters

Why Choose the QDB-4A?

• A single, integrated solution for diagnosing and validating multiple critical vehicle subsystems.
• Large, easy-to-read display and intuitive controls enhance workflow efficiency.
• Flexible voltage, current, frequency, and duty-cycle parameters enable precise testing under varied scenarios.
• Compact, portable design with built-in protection features for robust field use.

Suggested Applications

• Automotive repair shops and service centers performing ignition, fuel, and actuator diagnostics
• Research and development labs testing new sensors and actuators
• Training facilities for automotive electrical/electronic coursework