Have you bought a used car and found discrepancies in the documents? Or are you planning to tune your engine, but are not sure about the factory specifications? Determination of engine power by VIN code - this is the most reliable way to obtain accurate data that does not depend on the “crooked” hands of previous owners or errors in the title. In this article, we will analyze all the working methods: from free online services to engineering formulas used by professional appraisers.
The problem is that power in documents is often indicated with rounding (for example, 150 hp instead of real ones 147.5 hp), and after chip tuning or replacing the ECU, the data may not coincide with the actual data at all. According to traffic police statistics, up to 12% of cars on the secondary market have a discrepancy between the power in the title and the actual engine characteristics. This is fraught with problems when registering, calculating transport tax or issuing compulsory motor liability insurance. Below are step-by-step instructions that will help you avoid mistakes.
What is a VIN code and where to find it in a car
VIN (Vehicle Identification Number) is a unique 17-digit vehicle identifier that contains encrypted information about the make, model, year of manufacture, engine type and even country of assembly. Critical for determining power 4–8 characters (description of model and engine) and 10 character (year of release).
Where to look for VIN:
- 📄 B PTS or STS (string “VIN” or “Identification number”).
- 🚗 On body: under the windshield (driver's side), on the door pillar, under the hood (on the engine data plate).
- 🔧 B electronic systems: in the on-board computer (menu “Vehicle Information”) or through the OBD-II diagnostic connector (with the command
AT SH 91).
⚠️ Attention: If the VIN on the body and in the documents do not match, this is a sign interrupted number or fakes. Such a car cannot be registered, and its purchase is fraught with criminal liability under Art. 326 of the Criminal Code of the Russian Federation.
Method 1: Free online services for checking by VIN
The fastest method is to use official databases. The following services operate in Russia and the EAEU countries:
| Service | Link | Data Accuracy | Limitations |
|---|---|---|---|
| Traffic police (history check) | traffic police.rf | High (official data) | Only for cars registered in the Russian Federation |
| Autocode | avtocod.ru | Average (depending on base) | Paid full report |
| VIN-Info | vin.info | High (international bases) | English interface |
| EAISTO (for Belarus) | eaisto.by | Official data | Only for Belarusian cars |
How to check:
- Go to the service website.
- Enter VIN in the search bar.
- Study the "Technical Specifications" or "Engine" sections.
- Check the data with the PTS: power is indicated in kW (1 kW ≈ 1.36 hp).
If the service displays the error “VIN not found,” try removing the last digit (check number) or check the correctness of the entry. Sometimes databases store shortened numbers (11–14 characters).
Method 2: Decrypting VIN manually (for experienced)
If you don't trust online services or need 100% accuracy, you can decrypt the VIN yourself. Engine power is encoded in 8th character (for most European and Asian cars) or in 6–7 characters (for American cars). Here is an example decryption for Toyota Corolla E150 (2010–2013):
VIN: JTDKB20UX03XXXXXX
Explanation:
- JTD - manufacturer (Toyota, Japan)
- KB20 - model and body type (Corolla, sedan)
- U - engine type (1ZR-FE, 1.6 l, 124 hp)
- X03 - year of manufacture (2010) and plant
To find out the power:
- Define engine code (in the example - 1ZR-FE).
- Find technical documentation for this code (for example, on the manufacturer's website or in the catalog ETKA).
- Check the power in the Engine Specifications section.
How to find out the engine code by VIN for German cars?
For Volkswagen, Audi and BMW The engine code is often indicated in 5–7 characters VIN. For example, in VIN WVWZZZ3CZ8E123456 code 3CZ matches the engine 2.0 TSI (197 hp). For accurate decryption, use the database Motor-Codes.
Method 3: Formula for calculating power by volume and torque
If the VIN is not readable or the data is not in the database, the power can be calculated from the technical parameters of the engine. Formula:
Power (hp) = (Torque × RPM) / 7020
Where:
- 🔧 Torque (N m) - taken from technical documentation.
- ⚙️ Revolutions (rpm) - maximum speed at peak power (usually 5500–6500 for gasoline internal combustion engines).
- 7020 is the conversion factor to horsepower.
Example for Kia Rio 1.6 (G4FG):
- Torque: 151 Nm at 4200 rpm.
- Maximum power is achieved at 6300 rpm.
- Calculation: (151 × 6300) / 7020 ≈ 132 hp (matches factory data).
This formula only works for standard naturally aspirated engines. Turbocharged or hybrid systems require adjustment for boost ratio (typically +15–30%).
Method 4: Diagnostics via OBD-II (for modern cars)
Cars after 2008 support the protocol OBD-II, which allows you to read the real engine power at a given moment. For this you will need:
- 📱 Smartphone with application Torque Pro or OBD Auto Doctor.
- 🔌 ELM327 adapter (cost ~500–1500 ₽).
- 🚗 Access to the diagnostic connector (usually under the steering wheel).
Instructions:
☑️ Power check via OBD-II
Limitations of the method:
- ❌ Doesn't show maximum power, but only current.
- ❌ On some cars (for example, Mercedes-Benz with the system CAN-BUS) requires specialized software.
Method 5: Contact the traffic police or a certified technical center
If all previous methods have failed or you suspect that the data in the PTS is falsified, the only legal way is examination. In Russia this can be done:
- 🏛️ B traffic police (submit an application for verification of technical parameters).
- 🔧 B accredited technical center (for example, Bosch Service or ATS).
- 📑 Via independent examination (for the court or insurance company).
Check cost: from 2,000 to 10,000 rubles depending on the region. The result is an official document with a stamp that can be used to correct the PTS.
If you buy a car second-hand, ask the seller diagnostic card (issued after technical inspection). It indicates the engine power taken from the stand. This is not a guarantee, but an additional check.
Legal consequences of power mismatch
The difference between documented and actual power can lead to serious problems:
| Situation | Consequences | Fine/Punishment |
|---|---|---|
| Power in PTS underestimated (e.g. 120 hp instead of 150 hp) | Underpayment of transport tax | Recalculation + penalties (Article 122 of the Tax Code of the Russian Federation) |
| Power overpriced (for example, 200 hp instead of 170 hp) | Refusal of registration, suspicion of fraud | Up to 80,000 ₽ or deprivation of rights (Article 19.22 of the Administrative Code) |
| Mismatch after tuning (chip, turbine) | Signs of illegal design modification | Fine 500–800 ₽ + obligation to return to original condition |
⚠️ Attention: If you find a discrepancy after buying a car, you can file a lawsuit against the seller under Art. 475 of the Civil Code of the Russian Federation (“Defects of goods”). This will require an examination confirming the forgery of data.
FAQ: Frequently asked questions about power by VIN
Is it possible to find out the power by VIN if the car is from the USA?
Yes, but for American cars you need to use bases NHTSA (vpic.nhtsa.dot.gov) or Decode This. In the VIN of American cars, power is encoded in 6–7 characters (for example code LNF for Chevrolet Cruze 1.4T means 138 hp).
Why is the power indicated in the PTS in kW and not in hp?
Since 2010 in Russia, power in documents has been indicated in kilowatts (kW) according to Order of the Ministry of Internal Affairs No. 1001. To convert kW to hp, use the formula: 1 kW = 1.3596 hp. For example, 103 kW ≈ 140 hp.
What to do if the VIN is erased or damaged?
If the VIN is not readable, contact traffic police to restore the number. Independent “restoration” (for example, engraving) is prohibited and is punishable under Art. 326 of the Criminal Code of the Russian Federation (up to 2 years of imprisonment). An alternative is expertise in NIIAT (Research Institute of Motor Transport).
Does power according to VIN affect the cost of compulsory motor insurance?
Yes, but not directly. Insurance companies use basic tariffs, where power is one of the coefficients (for example, for motors >150 hp, the coefficient increases by 1.6). However, if the power in the title is underestimated, the insurance company may refuse to pay in case of an accident, citing unreliable data.
Is it possible to increase the power in the PTS after tuning?
Technically yes, but for this you need:
- Pass technical expertise at an accredited center.
- Get safety report changes.
- Submit documents to the traffic police to make changes to the PTS.
Cost of the procedure: from 15,000 to 50,000 rubles. Without this, the tuned car cannot be legally operated.