{"id":3517,"date":"2026-09-29T05:43:49","date_gmt":"2026-09-29T05:43:49","guid":{"rendered":"https:\/\/shop.autoboss.com\/?post_type=product&#038;p=3517"},"modified":"2026-10-09T08:20:31","modified_gmt":"2026-10-09T08:20:31","slug":"autool-ct400-fuel-injector-cleaner-tester","status":"publish","type":"product","link":"https:\/\/autoboss.com\/de\/product\/autool-ct400-fuel-injector-cleaner-tester\/","title":{"rendered":"AUTOOL CT400 6-Cylinder GDI\/EFI\/FSI Fuel Injector Cleaner and Tester"},"content":{"rendered":"<div class=\"abd-pd\" data-abd-version=\"1\">\n<header class=\"abd-hero\">\n<h3>Clean and Compare Six Injectors, Including Selected GDI Units, at 12, 70 or 120 V<\/h3>\n<p class=\"abd-lead\">The AUTOOL CT400 ultrasonically cleans standard gasoline, EFI, FSI and selected GDI injectors, then compares up to six for spray, leakage and collected volume under matched low-pressure conditions. It is not a high-pressure GDI calibration or coding system, and the cleaning tank is not heated.<\/p>\n<ul class=\"abd-facts\">\n<li>6 Injector Positions<\/li>\n<li>12 \/ 70 \/ 120 V Drive<\/li>\n<li>2 L Ultrasonic Tank<\/li>\n<li>3 Cleaning + 9 Test Modes<\/li>\n<li>Accessory Drawer<\/li>\n<\/ul>\n<\/header>\n<section class=\"abd-sec\" id=\"abd-features\">\n<h4>Key Features<\/h4>\n<ol class=\"abd-features\">\n<li>\n<h5>Selectable Injector Drive<\/h5>\n<p>Choose 12 V, 70 V or 120 V to suit the injector type; if unsure, start at 12 V and step up until the injector operates correctly.<\/p>\n<\/li>\n<li>\n<h5>Six-Position Comparison<\/h5>\n<p>Compare spray shape, closed-injector drips and collected volume side by side; plug unused positions when testing fewer injectors.<\/p>\n<\/li>\n<li>\n<h5>Ultrasonic Cleaning with Pulse Drive<\/h5>\n<p>Pulse actuation and ultrasonic energy work with approved cleaning fluid to loosen deposits before a repeat test.<\/p>\n<\/li>\n<li>\n<h5>Reverse Flushing<\/h5>\n<p>Helps move contamination out of compatible top-feed injectors or strainers where the injector procedure permits it.<\/p>\n<\/li>\n<li>\n<h5>One Control Panel<\/h5>\n<p>Select the function and set time, pulse width, drive voltage and pressure from the same panel for repeatable setups.<\/p>\n<\/li>\n<li>\n<h5>Organized Accessories<\/h5>\n<p>A drawer keeps adapters, plugs, cables, seals and small fittings at the bench.<\/p>\n<\/li>\n<\/ol>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-compare\">\n<h4>Model Comparison<\/h4>\n<div class=\"abd-table-wrap\">\n<table class=\"abd-table abd-compare\">\n<thead>\n<tr>\n<th scope=\"col\"><\/th>\n<th scope=\"col\">CT200<\/th>\n<th scope=\"col\" class=\"is-current\">CT400<\/th>\n<th scope=\"col\">CT450<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Injector drive<\/th>\n<td>Fixed 12 V<\/td>\n<td class=\"is-current\">12 \/ 70 \/ 120 V<\/td>\n<td>12 \/ 70 \/ 120 V<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Injector types<\/th>\n<td>Standard<\/td>\n<td class=\"is-current\">Standard, GDI, EFI, FSI<\/td>\n<td>Standard, GDI, EFI, FSI<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Test functions<\/th>\n<td>9<\/td>\n<td class=\"is-current\">9<\/td>\n<td>10 (adds pulse injection test)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Cleaning tank<\/th>\n<td>1700 mL<\/td>\n<td class=\"is-current\">2000 mL<\/td>\n<td>2000 mL<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Cleaning fluid heating<\/th>\n<td>No<\/td>\n<td class=\"is-current\">No<\/td>\n<td>Yes (50 \u00b0C)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Adapter types<\/th>\n<td>3<\/td>\n<td class=\"is-current\">9<\/td>\n<td>9<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Storage drawer<\/th>\n<td>No<\/td>\n<td class=\"is-current\">Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-box\">\n<h4>What&#8217;s in the Box<\/h4>\n<ul class=\"abd-box\">\n<li>CT400 injector cleaner and tester<\/li>\n<li>Injector adapter sets, fittings and sealing rings<\/li>\n<li>Fuel rail with pressure gauge, locking rods and signal harnesses<\/li>\n<li>Five position plugs<\/li>\n<li>Funnel, drain valve and ultrasonic tank cover<\/li>\n<li>Power cable<\/li>\n<li>User manual<\/li>\n<\/ul>\n<figure class=\"abd-fig\"><img decoding=\"async\" src=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/43e176be6d5d3c8894fbb860.webp\" alt=\"AUTOOL CT400 with injector adapter sets, plugs, O-rings, locking rods, funnel, drain valve, tank cover, pulse harnesses, fuel rail, power cable and manual\" width=\"1200\" height=\"1200\" loading=\"lazy\"><figcaption>CT400 package contents.<\/figcaption><\/figure>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-use\">\n<h4>How to Use<\/h4>\n<ol class=\"abd-steps\">\n<li><b>Identify the injector<\/b><span>Record the part number and confirm injector type, drive, feed direction, seals and whether low-pressure comparison suits the job.<\/span><\/li>\n<li><b>Pick adapter and drive<\/b><span>Fit the correct connector, rail adapter and plugs, then select the drive voltage.<\/span><\/li>\n<li><b>Clean ultrasonically<\/b><span>Fill the tank with approved cleaning fluid, connect the pulse lead and run the cleaning cycle. Never run the tank dry.<\/span><\/li>\n<li><b>Mount for testing<\/b><span>Install up to six injectors with correct seals, verify clamping and plug every unused position.<\/span><\/li>\n<li><b>Configure the test<\/b><span>Add non-corrosive injector test fluid, then set drive, pressure, pulse width, time and test mode.<\/span><\/li>\n<li><b>Compare and retest<\/b><span>Compare leakage, spray and volume under identical settings, swap channels if needed, repeat after cleaning and drain the fluids.<\/span><\/li>\n<\/ol>\n<p class=\"abd-note\">Voltage selection, test modes and troubleshooting: <a href=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/a860a91448dab3b9c120a491.pdf\" target=\"_blank\" rel=\"noopener\">CT400 user manual (PDF)<\/a>.<\/p>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-notes\">\n<h4>Good to Know<\/h4>\n<div class=\"abd-notes\">\n<div class=\"abd-note-group is-caution\">\n<h5><span class=\"abd-tag\">Caution<\/span><\/h5>\n<ul>\n<li>Never use cleaning fluid or gasoline in the test circuit; cleaning fluid can corrode internal parts and rubber seals and cause leaks.<\/li>\n<li>Do not drive an injector at an incorrect high voltage for long; a wrong setting can also cause no injection or a machine alarm.<\/li>\n<li>Diesel injectors can only be ultrasonically cleaned; diesel testing needs dedicated equipment.<\/li>\n<li>Cleaning without injector removal needs special adapters that are sold separately.<\/li>\n<\/ul>\n<\/div>\n<div class=\"abd-note-group is-care\">\n<h5><span class=\"abd-tag\">Care<\/span><\/h5>\n<ul>\n<li>Cleaning fluid is typically corrosive and flammable: ventilate, keep away from ignition sources and follow the fluid&#8217;s safety data and disposal rules.<\/li>\n<li>If no professional fluid is available, 75%+ medical alcohol can substitute for cleaning or test fluid, with less consistent results.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-faq\">\n<h4>FAQ<\/h4>\n<details class=\"abd-faq\" name=\"abd-faq\">\n<summary>Can the CT400 test GDI injectors at original engine pressure?<\/summary>\n<p>No. It drives, cleans and compares selected GDI injectors at bench pressure; original-pressure checks, OEM calibration and coding need dedicated equipment.<\/p>\n<\/details>\n<details class=\"abd-faq\" name=\"abd-faq\">\n<summary>One channel reads low. Is that injector restricted?<\/summary>\n<p>Check the fixture, seals, pressure stability and channel first, then swap positions and repeat under the same settings before deciding.<\/p>\n<\/details>\n<details class=\"abd-faq\" name=\"abd-faq\">\n<summary>Can every injector be reverse-flushed?<\/summary>\n<p>No. Only compatible designs, such as applicable top-feed units or strainers, and only where the injector service procedure permits it.<\/p>\n<\/details>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>GDI \/ EFI \/ FSI Drive:<\/strong> Select 12 V, 70 V, or 120 V injector drive for compatible standard gasoline, EFI, FSI, and selected GDI injectors.<\/li>\n<li><strong>Six-Injector Comparison:<\/strong> Mount up to six compatible injectors to compare spray appearance and collected volume under the same setup.<\/li>\n<li><strong>Clean, Test + Recheck:<\/strong> Use ultrasonic cleaning and permitted reverse flushing, then repeat leakage, spray, and volume observations under matched conditions.<\/li>\n<li><strong>Integrated Digital Controls:<\/strong> Set function, time, pulse, voltage, and pressure from one panel for a repeatable bench setup.<\/li>\n<li><strong>2,000 mL Tank + Drawer:<\/strong> A 2,000 mL ultrasonic tank supports batch cleaning, while the drawer organizes adapters, plugs, cables, and seals.<\/li>\n<\/ul>","protected":false},"featured_media":12324,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[128],"product_cat":[62,85],"product_tag":[129],"class_list":["post-3517","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-best-selling-products","product_cat-fuel-injector-cleaner-tester","product_tag-autool","first","instock","sale","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product\/3517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/comments?post=3517"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media\/12324"}],"wp:attachment":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media?parent=3517"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_brand?post=3517"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_cat?post=3517"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_tag?post=3517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}