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AUTOOL Fuel Injector Cleaner & Tester: Full Lineup Comparison & Buying Guide
oktober 17, 2026
Deel:
In engine maintenance and performance tuning, the atomization quality and spray volume uniformity of fuel injectors directly impact engine power output and fuel economy. AUTOOL fuel injector cleaner and tester machines combine ultrasonic cleaning with simulated condition testing, making them an essential tool for auto repair shops, tuning garages, and DIY enthusiasts.
However, many buyers get confused by the wide array of available models. Based on the latest official comparison data, this guide breaks down 10 popular models—CT150, CT160, CT200, CT400, CT450, CT500, FN602, FN603, FN606, and FN608—to help you quickly find the perfect fit for your workshop.
I. Model Categorization & Market Positioning
1. Basic Multi-Port Fuel Injection (MPI) Series
CT150 / CT160 / CT200
Target Audience: DIY enthusiasts, motorcycle repair shops, and garages servicing older naturally aspirated engines with Multi-Port Fuel Injection (MPI).
Belangrijkste kenmerken:
CT150: 4-cylinder entry-level model, compact size, and the most cost-effective option.
CT160: Upgraded 4-cylinder model with 45°C ultrasonic heating, offering better softening of carbon deposits and gums.
CT200: 6-cylinder standard model, designed for testing V6 engine MPI injectors simultaneously.
2. Mainstream Gasoline Direct Injection (GDI) Series
CT400 / CT450 / CT500 / FN602 / FN603
Target Audience: Full-service auto repair shops and garages specializing in modern vehicles equipped with GDI, FSI, TGDI, and other direct injection systems.
Belangrijkste kenmerken:
Supports 12V / 70V / 120V triple-voltage drive modes to properly activate high-pressure direct injectors. Equipped with 9 types of adapters and a bottom storage drawer.
CT450: Builds upon the CT400 by adding 50°C high-temperature heating, making it one of the most cost-effective choices among direct injection testers.
CT500: Features finer adjustment precision (0.1ms steps), a English/Chinese dual-language interface, and an anti-splash guard.
FN602: Highlights a detachable ultrasonic tank design, making waste fluid replacement and daily cleaning exceptionally convenient.
3. Ultra-High Voltage Flagship & Multi-Channel Series
FN606 / FN608
Target Audience: Professional tuning shops, performance vehicle specialists, and workshops servicing large-displacement V8 engines.
Belangrijkste kenmerken:
Drive voltage expanded further to 120V–180V to satisfy ultra-high-demand direct injection systems.
Uses a 550ml compact independent cleaning tank, both supporting 50°C heating en detachable tank design.
FN606: Top-tier 6-cylinder unit combining ultra-high voltage, dual-language interface, micro-pulse tuning, and a detachable tank.
FN608: The flagship of flagships supporting 8-cylinder simultaneous testing. Built-in dual fuel pumps ensure stable oil pressure even when 8 injectors are firing simultaneously at 7500 RPM.
II. Buying Guide: 3 Steps to Pick the Right Machine
Step 1: Check the Injection Type
MPI Only (Older Cars / Motorcycles): Choose CT150 / CT160 / CT200.
Modern GDI Direct Injection: You must select models supporting 70V / 120V / 180V (CT400 and above, or the FN series).
Step 2: Determine the Maximum Cylinder Count
4-Cylinder Engines: CT150 / CT160
6-Cylinder Engines: CT200 / CT400 / CT450 / CT500 / FN602 / FN603 / FN606
8-Cylinder / Dual-Pump Top-Tier: FN608
Step 3: Consider Maintenance & Practical Features
Heated Carbon Removal: Select models with heating features (CT160 / CT450 / FN602 / FN603 / FN606 / FN608).
Easy Cleaning & Fluid Drain: Choose models with detachable ultrasonic tanks (FN602 / FN606 / FN608).
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