LANGUAGE & CURRENCY
Independent Review · CT160
Real-world CT160 injector cleaning, leak test, flow-rate test, and before/after comparison.
AUTOOL CT Series · Fuel Injector Cleaner & Tester Machine
Clean, test, and identify the injector that’s out of balance.
AUTOOL CT Series ultrasonic fuel injector cleaner and tester machines clean and test gasoline EFI, GDI, and FSI injectors in one workflow — helping workshops diagnose rough idle, misfire, hard starting, power loss, high fuel use, and injector deposits with clear flow and spray-pattern data.
Rough idle
Misfires
Hard starting
Power loss
High fuel use
GDI deposits
Clogged injector
Leaking injector
160+Countries served by AUTOOL tools
3-YearMain-unit warranty on CT Series machines
90-DayReturn window for eligible direct-store orders
Before ordering: GDI support starts from CT400. If you service BMW, Audi, VW, Mercedes-Benz, Porsche, or other direct-injection vehicles, compare injector type, voltage support, cylinder capacity, and fuel injector testing machine workflow before selecting a model.
AUTOOL CT500
GDI / EFI / FSI Injector Cleaner & Tester Machine
Injector coverageGDI · EFI · FSI · standard gasoline injectors
Voltage12V / 70V / 120V
Functions15 test functions
Warranty3-Year main unit
$729$629
Shop CT500 →
Why this fuel injector tester machine is needed now
GDI is now mainstream — and injector deposits are a real service opportunity.
Modern gasoline vehicles need a clean, measurable fuel injector testing machine workflow to check injector spray, leakage, and flow balance before replacing parts.
73%
of model-year 2023 light-duty vehicles were produced with GDI — the highest adoption level among tracked engine technologies.
Source: U.S. Department of Energy, Feb 2024
93M+
passenger vehicles worldwide were equipped with GDI systems in 2024 — a growing service base for GDI fuel injector cleaning and testing.
Source: Market Growth Reports, GDI Equipment Market
7.4% CAGR
forecast growth for the global GDI system market from 2025–2034, reaching $19.2B by 2034.
Source: Global Market Insights, Aug 2025
Video evidence
Watch CT fuel injector tester machines tested and demonstrated.
Use video cards to help shoppers see fuel injector cleaner machine setup, ultrasonic cleaning, spray-pattern checks, flow-balance testing, and real bench operation before choosing a model.
Workshop Demo · CT500
CT500 first impressions, setup flow, injector mounting, and bench testing demonstration.
AUTOOL Tutorials · CT Series
Official AUTOOL operation videos covering CT bench setup, injector cleaning, testing workflow, and model use cases.
Who buys the CT Series
Find the right fuel injector tester bench for your work.
Independent repair shop
Mixed EFI and GDI vehicles every day
From Asian daily drivers to European GDI systems, you need a car injector tester bench that can handle standard injectors and high-voltage GDI injectors. Choose a 6-cylinder AUTOOL CT bench to clean, test, compare, and document injector balance before replacement.
Recommended: CT400 for entry GDI service · CT450 for heated cleaning · CT500 for the best all-round workshop setup
Performance / tuning shop
Flow-matching before dyno work or fuel changes
Injector imbalance can affect AFR consistency and tuning repeatability. The CT Series works as an injector flow tester to help you compare spray pattern, leakage, and flow balance before mapping, after fuel changes, or during injector matching work.
Recommended: CT500 — 6-cylinder GDI/EFI/FSI coverage, 12V/70V/120V, 15 test functions
Motorcycle workshop
EFI injector cleaning for bikes, ATVs, and small engines
For standard gasoline EFI injectors, CT160 gives motorcycle shops a compact 4-cylinder EFI fuel injector cleaner bench with heated ultrasonic cleaning, leakage checks, spray observation, and flow comparison.
Recommended: CT160 for 4-cylinder EFI work · CT200 if you need 6-cylinder EFI capacity
DIY enthusiast / home garage
Clean and check injectors before buying replacements
If the vehicle uses standard 12V gasoline EFI injectors, CT160 is the practical starting point. For GDI vehicles, step up to CT400, CT450, or CT500 to match the injector type and voltage requirement.
Recommended: CT160 for standard EFI · CT400/CT450/CT500 for GDI vehicles
Choose by workflow
Match your shop type to the right CT bench before you buy.
Compare fuel injector cleaner machine options by EFI, GDI, heated cleaning, and 6-cylinder capacity in one table.
Symptom Checker
Could it be the injectors?
Select the symptom you’re diagnosing. AUTOOL CT Series testers help confirm or rule out injector-related faults — including a bad fuel injector, clogged fuel injector, dirty fuel injectors, or fuel injector leaking — by checking spray pattern, leakage, clogging, atomization, and flow balance before replacing parts.
Process
Clean, test, and decide with data.
Follow a simple AUTOOL CT fuel injector cleaner machine workflow: mount the injectors, run ultrasonic cleaning, verify spray and flow balance, then reinstall or replace based on measured results — not guesswork.
1
Mount the injectors
Install up to six gasoline injectors on the CT500 test rail. Select the correct adapters and connect the pulse signal leads for the injector type.
~2 min2
Ultrasonic fuel injector cleaner step
Use professional ultrasonic cleaning fluid. CT500’s 28 kHz ultrasonic fuel injector cleaner step helps remove carbon, varnish, and fine deposits from injector nozzles and internal passages without opening the injector body.
5–10 min3
Flow bench verification
Switch to professional injector test fluid. Run idle, medium-speed, high-speed, acceleration, fuel injector flow test, flow-balance, spray-pattern, and leak checks. Compare the graduated glass tubes and spray shape across the set.
3–5 min4
Confirm or replace
Balanced volume and clean spray pattern? Reinstall with confidence. Still low, uneven, high-flow, or dripping after cleaning? Document the result and replace the faulty injector or bad fuel injector.
1 minAUTOOL CT500 — Idle Speed TestTesting
Reference band ≈2/3 tube · 70–75 ml
Run the idle-speed comparison until the reference injectors reach about 70–75 ml, or roughly 2/3 of the 110 ml tube. Normal injectors should cluster closely together. Low flow, poor spray pattern, or a high-flow/dripping injector will stand out before the tube is full.
OK ≈ balancedLow flow / clogPoor / uneven sprayHigh flow / leak check
MachineAUTOOL CT500
ModeIdle Speed Test · 0–20 ms
Tube scale110 ml glass tube · compare near 70–75 ml
Reference point≈2/3 tube level
Balanced set✓ Cyl 1/2/4 around 69–71 ml
Common faultsLow flow / clogging / poor atomization
High flowLess common · check leak / rich risk
VerdictClean low-flow or poor-spray injectors → re-test
Leak-check high-flow or dripping injectors → replace if fault remains
Leak-check high-flow or dripping injectors → replace if fault remains
Use the 70–75 ml reference band for fast visual comparison: low volume usually points to restriction, poor or uneven spray suggests atomization problems, and true high volume or dripping should be checked as a leak/rich-risk failure.
Method Comparison
Why bench cleaning beats guesswork.
| Method | Cleaning depth | Flow test included | Turnaround | Best use |
|---|---|---|---|---|
| Fuel tank additive | Light maintenance | No | Days of driving | Preventive care |
| On-car flush | Partial cleaning | No bench data | 30–60 min | Mild symptoms |
| External lab | Deep clean + test report | Yes | 1–7 days | Occasional jobs |
| AUTOOL CT Series | Ultrasonic clean + flow verification | Yes | One bench session | Workshop diagnostics and repeat service |
Professional off-car injector service normally checks leakage, spray pattern, and flow rate; compared with fuel injector cleaner additive or on-car cleaning, it provides flow-bench data before parts replacement.
CT Series Models
Every AUTOOL fuel injector cleaner & tester machine.
From entry EFI benches to GDI-ready fuel injector testing machines, choose by injector type, cylinder capacity, heating, and voltage support.
01 · EFI EntryCT150
Lowest-cost AUTOOL fuel injector cleaner machine bench for standard gasoline EFI injector cleaning and testing.
02 · Heated EFI / 6-Cyl EFICT160 / CT200
Choose CT160 for heated 4-cylinder EFI work, or CT200 when you need 6-injector EFI capacity.
03 · GDI UpgradeCT400 / CT450
Choose CT400 to enter GDI service. Choose CT450 when heated ultrasonic cleaning is a priority.
04 · Default BayCT500
Best default for mixed GDI / EFI / FSI traffic and 6-injector workshop flow.
Fuel Injector Cleaner Machine for Sale
Entry EFI
AUTOOL CT150
Fuel Injector Cleaner & Tester Machine — 4 Cylinder
For DIY users and small shops working on standard gasoline EFI injectors. A simple 4-cylinder fuel injector cleaner machine bench with ultrasonic cleaning, spray comparison, leakage check, flow observation, and 12 available functions.
EFI standard gasoline12V standard injectors4 cylinders12 available functions110 ml cylindersNo heating
Heated EFI
AUTOOL CT160
Fuel Injector Tester Machine + Heated Ultrasonic Cleaner — 4 Cylinder
For home garages, motorcycle workshops, and small repair shops. CT160 adds heated ultrasonic fuel injector cleaning up to 45°C for standard 12V gasoline EFI injectors.
EFI standard gasoline12V standard injectors4 cylinders10 functions45°C heated cleaning2000 ml ultrasonic tank
6-Cyl EFI
AUTOOL CT200
Ultrasonic Fuel Injector Cleaner & Tester Machine — 6 Cylinder EFI
For shops that need a fuel injector testing machine to clean and compare up to six standard 12V gasoline EFI injectors in one bench session.
EFI standard gasoline12V standard injectors6 cylinders12 main functions110 ml test tubesCars & motorcycles
GDI Ready
AUTOOL CT400
GDI Fuel Injector Cleaner & Tester Machine — 6 Cylinder
For workshops entering GDI service. CT400 supports standard EFI and high-voltage GDI injectors with auto voltage matching as a GDI fuel injector tester machine.
GDI + EFI + FSI12V / 70V / 120V6 cylinders12 functionsAuto voltage match2000 ml tank
Heated GDI
AUTOOL CT450
Ultrasonic GDI Fuel Injector Cleaner Machine — 6 Cylinder
For shops dealing with heavy deposits, long GDI injectors, and frequent European or Asian direct-injection service. CT450 adds a 50°C heated ultrasonic tank with 3 cleaning functions and 10 testing functions.
GDI + EFI + FSI12V / 70V / 120V6 cylinders3 cleaning + 10 testing50°C heated tank28 kHz ultrasonic cleaning
Most Popular
AUTOOL CT500
GDI / EFI / FSI Fuel Injector Cleaner & Tester Machine — 6 Cylinder
The professional default fuel injector testing machine for mixed modern traffic. CT500 combines high-voltage GDI support, 6-cylinder workflow, color display, and 15 cleaning and testing functions.
GDI + EFI + FSI12V / 70V / 120V15 functions6 cylinders70W ultrasonic cleaning0–0.8 MPa pressure2000 ml tankColor display
Model comparison
Choose the right CT fuel injector tester machine by workflow.
Compare this fuel injector cleaner machine lineup by injector type, cylinder capacity, heating, voltage support, and test functions: entry EFI, heated EFI, 6-cylinder EFI, entry GDI, heated GDI, or the CT500 default workshop bench.
01 · EFI EntryCT150
Use when the bay needs standard gasoline injector cleaning and testing at the lowest CT bench price point.
02 · EFI RoutineCT160 / CT200
Choose CT160 for heated 4-cylinder EFI cleaning, or CT200 when 6-injector standard EFI workflow matters.
03 · GDI UpgradeCT400 / CT450
Use for shops entering GDI service. Pick CT450 when heated ultrasonic cleaning is the priority.
04 · Default Workshop BenchCT500
Best default for mixed GDI / EFI / FSI traffic, 6-injector workflow, and wider test-function coverage.
| Model | Price | Best-fit buyer | Injector coverage | Critical capability | Best for / limitations |
|---|---|---|---|---|---|
| CT150Entry EFI | $259 | DIY users and small shops doing basic 4-cylinder standard injector work. | Standard gasoline injectors; diesel cleaning only, not testing. | 4 injectors · 110 ml cylinders · 12 available functions · ultrasonic cleaning · leak / spray / flow checks · non-heated | Best low-cost CT bench for standard EFI. Choose CT160 for heating, or CT400+ for GDI. |
| CT160Heated EFI | $245 | 4-cylinder EFI users who want heated ultrasonic cleaning. | Standard 12V gasoline injectors; not for high-voltage GDI. | 4 injectors · 45°C heating · 2000 ml cleaning tank · 100 ml test tubes · 0–0.6 MPa pressure · 110V / 220V | Good heated EFI choice for DIY, motorcycles, and small shops. Choose CT200 for 6 injectors. |
| CT2006-Cyl EFI | $319 | Small workshops needing to test 6 standard injectors at once. | Standard 12V gasoline injectors; no GDI mode. | 6 injectors · 12 main functions · 110 ml test tubes · standard 12V gasoline injectors · no GDI test mode | Best 6-cylinder EFI bench. Move to CT400/CT450/CT500 when GDI service is frequent. |
| CT400Entry GDI | $509 | Shops entering GDI service at the lowest GDI-capable CT price point. | GDI / EFI / FSI / standard gasoline injectors. | 6 injectors · 12V / 70V / 120V · 12 functions · 2000 ml cleaning tank · auto voltage match · GDI support | Best GDI entry point. Choose CT450 for heated cleaning or CT500 for more test functions. |
| CT450Heated GDI | $549 | GDI shops prioritizing heated ultrasonic cleaning for heavy deposits. | GDI / EFI / FSI / long injectors; diesel cleaning only. | 6 injectors · 12V / 70V / 120V · 50°C heated 2000 ml tank · 28 kHz ultrasonic · 3 cleaning + 10 testing functions | Strong choice when heated cleaning matters most. Compare CT500 for color display and wider test modes. |
| CT500FlagshipRecommended | $629 | Independent and mid-size shops needing one default bench for mixed modern traffic. | GDI / EFI / FSI / standard gasoline injectors; diesel cleaning only. | 6 injectors · 12V / 70V / 120V · 15 functions · color display · 0–0.8 MPa pressure · 70W ultrasonic · 2000 ml tank | Best all-round CT bench for GDI / EFI / FSI injector service. |
Ready to choose?
Pick the model that matches your injector type, voltage, and service volume.
Use CT160 for heated EFI, CT400/CT450 for GDI entry work, or CT500 as the all-round workshop bench when comparing fuel injector testing machine price and capability.
ROI calculator
How fast can a CT fuel injector testing machine pay for itself?
Adjust weekly service volume, fuel injector cleaning cost, machine cost, and consumables. Results estimate contribution after consumables, before labor, tax, shipping, and local overhead.
4cars / week
$100per car
$625equipment
$8fluid / job
Estimated workshop output
| Metric | Result |
|---|---|
| Weekly gross revenue | $400 |
| Weekly consumables | $32 |
| Weekly net contribution before labor | $368 |
| Average monthly net contribution before labor | $1,595 |
| Estimated payback period | 1.7 weeks |
| First-year net after machine cost, before labor/tax | $18,511 |
Formula used:
Weekly net = jobs/week × (service charge − consumables)
Monthly net = weekly net × 52 ÷ 12
Payback = machine cost ÷ weekly net
Year-1 net = weekly net × 52 − machine cost
Note: This calculator is an estimate for fuel injector cleaning cost planning. Use your own labor rate, local service price, demand, taxes, shipping, consumables, and workflow before purchasing equipment.
Social Proof
What mechanics and shop owners say about AUTOOL CT fuel injector tester machines.
Peace of Mind
Order with official AUTOOL support.
3-Year Main-Unit Warranty
Main-unit coverage for eligible AUTOOL Store purchases; standard accessories are covered for 1 year.
Regional Warehouse Routing
US / EU / UK / CN stock paths where available, depending on product, voltage, destination, and checkout options.
Model Guidance
Send injector type, vehicle list, voltage needs, or shop volume to confirm the right CT model before ordering.
Return Path
Eligible direct-store purchases can use the official return policy path; current AUTOOL Store policy lists a 90-day return window for eligible physical goods.
B2B Support
Bulk orders, mixed-model bay packages, distributor quotes, invoice support, and adapter guidance are available through the CT Series B2B path.
Technical Support
AUTOOL support routes include WhatsApp, email, and online help for setup, voltage, compatibility, and fluid-use questions.
FAQ
CT Series fuel injector cleaner machine questions before you buy.
Which CT model should I choose?
Choose by injector type and workflow: CT150 for basic 4-cylinder standard EFI work, CT160 for 4-cylinder EFI with 45°C heated cleaning, CT200 for 6-cylinder standard 12V EFI, CT400 for entry GDI / EFI / FSI support, CT450 for heated GDI cleaning with 3 cleaning and 10 testing functions, and CT500 for the widest CT Series GDI / EFI / FSI workshop setup with 15 functions.
Can I use this for GDI injectors?
Yes, with the correct model. GDI support starts from CT400 in this CT Series selection. For GDI work, compare injector type, adapter fitment, and 12V / 70V / 120V voltage support before buying.
What is the difference between CT150, CT160, and CT200?
CT150 is a 4-cylinder standard gasoline EFI fuel injector tester and cleaner without heating. CT160 is also a 4-cylinder standard 12V gasoline injector bench, but adds heated ultrasonic cleaning up to 45°C. CT200 moves to a 6-cylinder standard 12V gasoline injector workflow with 12 main functions and 110 ml test tubes.
What is the difference between CT400, CT450, and CT500?
CT400 is the entry GDI-capable 6-cylinder model with 12V / 70V / 120V support and 12 functions. CT450 adds 50°C heated ultrasonic cleaning and is listed with 3 cleaning functions plus 10 testing functions. CT500 adds the broadest CT Series function set here, with 15 cleaning and testing functions, color display, 70W ultrasonic power, 0–0.8 MPa pressure adjustment, and a 2000 ml tank.
Can it clean BMW, Audi, VW, Mercedes-Benz or Porsche injectors?
Use a GDI-capable CT model when servicing direct-injection vehicles such as BMW, Audi, VW, Mercedes-Benz, Porsche, or similar applications. Confirm injector type, voltage, and adapter fitment before ordering, especially for GDI / FSI / long-injector applications.
Can I test leakage, spray pattern, and a fuel injector leaking problem?
Yes, when the injector type is supported by the selected CT model. CT benches are used for leakage checks, spray-pattern observation, spray-volume or flow comparison, and injector balance testing before reinstalling or replacing parts.
Does it work as a diesel injector tester?
No for diesel testing. CT Series machines in this page are mainly for gasoline EFI / GDI / FSI injector cleaning and testing. Supported CT models may clean diesel injectors, but diesel injectors are cleaning-only and cannot be tested as diesel injectors on these CT benches.
Is this a common rail injector tester?
No. A common rail injector tester or diesel high-pressure test bench is different equipment. Use this CT Series page for gasoline EFI / GDI / FSI injector cleaning and testing, and use diesel-specific equipment for common rail injector pressure and performance testing.
What fluid should I use?
Use professional ultrasonic injector cleaning fluid in the cleaning tank and professional injector test fluid in the test circuit. Keep cleaning fluid and test fluid separate. Do not use gasoline as test fluid, do not run ultrasonic cleaning dry, and keep fluids away from open flames.
What is a fuel injector cleaner machine?
A fuel injector cleaner machine, also searched as a fuel injector cleaning machine, is an off-car injector bench that uses ultrasonic cleaning and test-fluid flow checks to clean, compare, and evaluate injectors before reinstalling or replacing them.
Is a fuel injector tester different from a fuel injector cleaner additive?
Yes. A fuel injector cleaner additive is poured into the fuel tank. A fuel injector tester or cleaner machine is bench equipment: the shop removes supported injectors, cleans them off-car, observes spray pattern, compares flow, and checks leakage.
Can I use it for a clogged fuel injector or dirty fuel injectors?
Yes, if the injector type is supported by the selected CT model. The bench can clean the injector, run flow comparison, check atomization, and show whether the clogged or dirty injector improves after cleaning.
How should I compare fuel injector cleaning cost with buying a CT bench?
Compare your local fuel injector cleaning cost, weekly job count, consumables, and the selected machine price. The ROI calculator estimates how many in-house cleaning and testing jobs are needed before the CT machine pays back.
Can a shop serve fuel injector testing near me demand with a CT bench?
Yes, for supported gasoline EFI / GDI / FSI injectors. If local customers search for injector testing near me or fuel injector testing near me, a CT bench helps the shop offer in-house cleaning, leakage checks, spray-pattern checks, and flow comparison.
Does it replace diagnosis or a noid light kit?
No. It supports diagnosis by showing leakage, spray pattern, flow volume, and balance. Use it with normal checks such as fault codes, fuel pressure, ignition, intake, compression, and electrical pulse checks such as a noid light kit or fuel injector test kit when needed.
Is injector cleaning actually necessary for clogged fuel injector symptoms?
It depends on the symptom and test result. The value of a CT bench is that you can clean the injector, retest it, and decide from flow and spray data instead of replacing parts blindly when a clogged fuel injector or dirty fuel injectors are suspected.
How long does one session take?
A full ultrasonic clean and test workflow typically takes one bench session. Actual time depends on injector condition, model, fluid choice, cleaning time, and selected test steps.
Are adapters included?
Included accessories vary by model and package. Check the current product page and package image, and confirm adapter fitment if your injector is GDI, FSI, long-body, motorcycle, or a less common style.
Which power version and warehouse should I choose?
Choose the correct 110V or 220V version for your country before ordering. Available warehouse routing can vary by product, voltage version, stock, and destination, so confirm the product page selection before checkout.
Do you offer B2B pricing?
Yes. Workshops, distributors, training schools, fleets, and multi-bay repair chains can request multi-unit or mixed-model CT Series quotes, including adapter guidance and warehouse-aware ordering support.
B2B / Workshop Quote
Equipping multiple bays or reselling AUTOOL?
Request a quote for multi-unit CT Series fuel injector testing machine orders, mixed-model bay packages, training schools, distributors, repair chains, fleet workshops, and reseller programs.
Choose Your CT Setup
Test before you replace.
Pick the CT fuel injector cleaner machine that matches your injector type, voltage requirement, vehicle mix, and shop volume. If you are unsure, send AUTOOL your injector photos, vehicle list, or service workflow before ordering.