{"id":30574,"date":"2021-11-11T11:08:49","date_gmt":"2021-11-11T03:08:49","guid":{"rendered":"https:\/\/shop.autooltech.com\/?post_type=product&p=30574"},"modified":"2026-05-20T23:43:05","modified_gmt":"2026-05-21T07:43:05","slug":"autool-ct400-gdi-fuel-injector-tester-cleaner-machine","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/hr\/product\/autool-ct400-gdi-fuel-injector-tester-cleaner-machine\/","title":{"rendered":"AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test"},"content":{"rendered":"
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AUTOOL CT400<\/div>\n

Product Overview<\/h2>\n

The AUTOOL CT400 is a 6-cylinder fuel injector cleaning and testing machine for standard fuel injectors, GDI, EFI, and FSI long fuel injectors. It adopts GDI injector driving technology with 12V, 70V, and 120V voltage selection, ultrasonic cleaning, sprayability tests, leakage testing, reverse flushing, no-disassembly cleaning support, and organized accessory storage for workshop injector maintenance.<\/p>\n

\n GDI \/ EFI \/ FSI<\/span>\n 12V \/ 70V \/ 120V<\/span>\n 6-Cylinder Design<\/span>\n Ultrasonic Cleaning<\/span>\n <\/div>\n
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6<\/span>Injectors<\/span><\/div>\n
12<\/span>Functions<\/span><\/div>\n
2000ml<\/span>Cleaning Tank<\/span><\/div>\n
3 Years<\/span>Warranty<\/span><\/div>\n <\/div>\n <\/div>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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How To Choose<\/div>\n

How To Choose<\/h2>\n

CT400 is positioned above 12V-only entry models and below the higher-end heating, wider-pulse, dual-pump, and 8-cylinder models. Use these decision points before ordering.<\/p>\n <\/div>\n

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Need GDI Injector Support?<\/h3>\n

Choose CT400 if you need to clean and test standard injectors plus GDI, EFI, and FSI injectors with 12V, 70V, and 120V voltage selection.<\/p>\n <\/article>\n

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Need 6-Cylinder Testing?<\/h3>\n

CT400 supports simultaneous cleaning or testing for 6 fuel injectors, making it more capable than 4-cylinder CT150 and CT160 models.<\/p>\n <\/article>\n

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Need Accessory Storage?<\/h3>\n

Compared with CT200, CT400 adds GDI support and a practical drawer for injector adapters and accessories.<\/p>\n <\/article>\n

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Need Heating?<\/h3>\n

CT400 does not include cleaning-fluid heating. Choose CT450, FN606, or FN608 if a 50\u00b0C heating cleaning tank is required.<\/p>\n <\/article>\n

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Need More Test Modes?<\/h3>\n

Choose CT500 or FN608 if you need more advanced testing functions such as wide pulse injection or continuous injection test.<\/p>\n <\/article>\n

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Need 8-Cylinder Capacity?<\/h3>\n

Choose FN608 if you need 8-cylinder injector testing and dual independent fuel pumps. CT400 supports 6 cylinders and uses one built-in pump.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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Before You Order And Use<\/div>\n

Before You Order And Use<\/h2>\n

Use the correct test fluid and cleaning fluid. Do not test injectors with corrosive cleaning fluid, and do not run the ultrasonic tank without fluid.<\/p>\n <\/div>\n

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Use Test Fluid For Testing<\/h3>\n

Test fluid is a colorless, odorless, non-corrosive liquid used to check injector performance and simulate injector working conditions. Use professional injector test fluid for best results.<\/p>\n <\/article>\n

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75%+ Alcohol As Backup<\/h3>\n

If professional test fluid is unavailable, medical alcohol with over 75% alcohol content can be used as an alternative for injector testing.<\/p>\n <\/article>\n

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Do Not Test With Cleaning Fluid<\/h3>\n

Do not use corrosive cleaning fluid as injector test fluid. It may damage internal machine parts, corrode rubber, cause leaks, and may lead to repair costs.<\/p>\n <\/article>\n

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Use Cleaning Fluid For Ultrasonic Cleaning<\/h3>\n

Cleaning fluid removes carbon deposits from injectors and is typically corrosive and flammable. Use professional ultrasonic cleaning fluid or engine carbon cleaning fluid.<\/p>\n <\/article>\n

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Do Not Run Ultrasonic Tank Dry<\/h3>\n

Before using the ultrasonic cleaning function, add the carbon cleaning fluid first. Running the machine without fluid may damage the ultrasonic motherboard.<\/p>\n <\/article>\n

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Single Injector Testing<\/h3>\n

When testing a single injector, plug the other 5 cylinders. CT400 comes with five plugs for this single-injector testing situation.<\/p>\n <\/article>\n <\/div>\n

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GDI Voltage Reminder<\/h3>\n