VDiag VD30 Pro | Owner’s REVIEW
Vdiagtool VD30 is one of the best code readers I have tried. So far only code reader I have tried that can display 4 live data graphs at once, battery test, and read different types of codes separately.
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VdiagTool VD30 Pro
Comparing Vdiag to other code readers in a similar price range, it can display more live data values and also display up to 4 different graphic values at a time.
It supports all 10 Global OBD modes and you can use it on any vehicle that has an OBD-II system.
Amazon Discount Code: “hackervd30p”
Current list of best engine code readers
Get the best price
Here are multiple stores where you can get Vdiagtool VD30 Pro. Check them out to get the best deal possible.
Who tested product & wrote this review?
Tester & Editor for this review: Juraj Lukacko
Hello, I am Juraj (Yuri) and I tested this product to help you decide if it is something you would want to buy, and if yes, show you how to use it.
I make honest reviews based on personal testing in my own garage and If I see the product is bad, I will make it very clear in review.
Read more about how I do reviews on Iamcarhacker.com in my review policy.
VIDEO: Vdiagtool VD30 review
I also made a video review of this code reader, check it out in action 🙂
The only thing I disliked about the scanner was it was missing some letters in the OBD codes library. For example, if I looked up the code for fuel injector, it doesn’t say “fuel injector fault”, but ” jector fault.”
But if you scan codes from your car, the code description is complete, the bug is happening only in the library function.
Testing VD30 code reader
Ok, so this code reader can do all of that basic OBD stuff you already know like read codes/data or clear your check engine light.
But what makes it so good that I placed it in my best code reader list, even though I tested a whole bunch of them?
There are a few things making VD30 stand out:
4v1 live data
Most code readers will display live data. But not all of them will show you all possible parameters (VD30 can) and not all of them will display them as graphs.
And none of the code readers I tested so far could display up to 4 different values at once!
The closest was Ancel AD530 with a 3v1 live data stream, but VD30 is the first to display 4v1 (from what I tested)
To be honest, reading 4 engine live data parameters looks pretty confusing on the small screen but that is the problem of code readers in general.
They just don’t come with a screen big enough to display multiple separate graphs.
VD30 is a great overall code reader
VD30 just does it all.
From separating codes which not all code readers can do (show permanent, current, and pending codes in separate tabs) up to multiple live data graphs make it one of best code readers I have tried so far 🙂
Get the best price
Here are multiple stores where you can get Vdiagtool VD30 Pro. Check them out to get the best deal possible.
Code Reader vs. Other OBD2 Scanners (Why You May Want More Than This Tool)
Basic handheld code readers are reliable and easy to use, but they are also very limited. They can read & clear only engine fault codes and show basic live data.
For older vehicles, that’s often enough — but for modern cars, it becomes a problem.
Where simple code readers fall short
Modern cars have 20–100 control modules, not just the engine. With a basic reader, you cannot access:
- ABS / Airbag / Transmission fault codes
- Battery, brake, injector, DPF, throttle and other service resets
- Live data from other modules (ABS sensors, transmission temperature, etc.)
- Bi-directional tests (fan tests, actuator tests, EVAP tests, fuel pump tests…)
- ECU coding / adaptations for unlocking hidden features
- Used-car checks like real mileage stored in modules
So while basic code readers “work,” they often don’t give you the information you actually need to diagnose a real issue on a modern car.
Better Alternatives (Same Price, 10× the Features)
Today, you can get a Bluetooth bi-directional scanner for almost the same price as a simple code reader — but with full-system diagnostics and service functions.
If you want something affordable but powerful, look at:
? Best Bluetooth bi-directional OBD2 scanners (full-system scan + service resets + live data + tests)
Or Go Straight to a Diagnostic Tablet
Yes, diagnostic tablets look expensive at first — but they often include:
- Full-system scanning
- Bi-directional tests
- ECU coding
- Service resets for brakes, battery, throttle, DPF, etc.
- Lifetime updates on many models (Thinkcar / Mucar)
If you plan to keep your car long-term or help friends/family, a tablet often pays for itself in 1–2 repairs.
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