What is Car Kundali?
Car Kundali – OBD2 Scanner is a powerful free Android app by NextInt Inc that turns your smartphone into a professional car diagnostic tool. By pairing with any standard Bluetooth ELM327 OBD2 adapter — a small plug-in device available for a few hundred rupees — you get instant access to your vehicle's on-board computer (ECU).
Whether you want to know why your Check Engine Light is on, monitor engine temperature and RPM in real time, check emission readiness, track your trip fuel usage, or test 0–100 km/h acceleration, Car Kundali handles it all in one clean, easy-to-use app.
🔌 You need a Bluetooth ELM327 OBD2 adapter (sold separately at ₹300–₹800 on Amazon/Flipkart) to use this app. Once plugged into your car's OBD2 port, the app connects automatically via Bluetooth.
Who Is Car Kundali For?
Daily Drivers
Know your car's health before a long trip. No garage visits for simple diagnostics.
Car Enthusiasts
Live RPM, throttle, MAF, boost pressure — real data for real petrolheads.
Mechanics
Quick DTC scan and freeze frame data — faster first diagnosis at the workshop.
Cab / Fleet Drivers
Trip distance, duration, average speed, fuel estimate — all tracked automatically.
Auto Students
Study live ECU data and OBD2 protocol using the built-in terminal mode.
Used Car Buyers
Scan before you buy. Check hidden fault codes and engine health instantly.
All Features at a Glance
Connect & Diagnose
Read and clear DTC fault codes. Turn off Check Engine Light. View detailed fault descriptions with freeze frame data.
Live Dashboard
Real-time RPM, speed, coolant temp, MAF, MAP, fuel trims, throttle position, O₂ sensors, battery voltage — live charts & gauges.
Vehicle Health Score
Instant health score based on fault codes and sensor readings. Easy-to-understand alerts — know before you visit a workshop.
Performance Timer
Measure 0–60 and 0–100 km/h acceleration using real OBD speed data. Track peak RPM and top speed.
Trip Computer
Track trip distance, duration, average & max speed, fuel consumption estimate. Reset anytime.
Advanced Terminal
Built-in OBD terminal — send raw AT & OBD commands, data logging, CSV export for advanced users.
Emission Readiness
Check if your car is ready for emission testing. Verify all OBD monitors before the PUC check.
Freeze Frame Data
Capture sensor snapshot at the moment a fault occurred — crucial for accurate diagnosis.
CSV Data Export
Log all live sensor data and export as CSV — perfect for analysis, mechanics, or AutoIT/Excel charts.
Six Diagnostic Modules — Deep Dive
🔌 Connect & Diagnose
- Read Diagnostic Trouble Codes (DTCs)
- Clear fault codes & turn off Check Engine Light
- Detailed fault descriptions in plain language
- Freeze frame data at fault occurrence
- Emission/OBD readiness status
📊 Live Data & Dashboard
- Real-time RPM, vehicle speed, coolant temperature
- MAF, MAP, fuel trims (short & long), throttle position
- Oxygen sensor readings (O₂ sensors)
- Battery voltage monitoring
- Smooth live charts and customisable gauges
❤️ Vehicle Health
- Overall health score (0–100) based on real ECU data
- Instant engine condition overview
- Easy-to-read alerts and recommendations
- Know your car's status before visiting a workshop
⚡ Performance Features
- 0–60 km/h and 0–100 km/h acceleration timer
- Peak speed and peak RPM tracking
- Real OBD speed — more accurate than GPS
- Safe in-car performance testing
🗺️ Trip Computer
- Trip distance and elapsed duration
- Average speed and maximum speed
- Estimated fuel consumption per trip
- One-tap trip reset anytime
🔧 Advanced / Terminal
- Built-in OBD-II terminal
- Send raw AT commands and custom PIDs
- Data logging during drive
- CSV export for offline analysis
Compatible Vehicles & Brands
Car Kundali works with most OBD2-compliant vehicles. In India, this covers the vast majority of cars sold from 2005 onwards. Here's a quick reference:
| Vehicle Type | Manufacture Year | OBD2 Support |
|---|---|---|
| Petrol Cars & SUVs | 2000 onwards (most regions) | ✅ Yes |
| Diesel Cars & SUVs | 2004 onwards (varies by region) | ✅ Yes |
| CNG Variants (OBD2) | 2010 onwards (typically) | ⚠ Partial |
| Electric Vehicles (EV) | Varies by manufacturer | ⚠ Varies |
| Motorcycles / Bikes | OBD2 bikes (post-2015 BS4+) | ⚠ Limited |
Popular brands supported:
✅ Tip: If your car was bought from an authorised dealer in India after 2010, it almost certainly has an OBD2 port — usually located under the dashboard on the driver's side.
How to Get Started — Step by Step
You'll be reading live engine data in under 5 minutes. Here's how:
Buy a Bluetooth ELM327 OBD2 Adapter
Available on Amazon India or Flipkart for ₹300–₹800. Search "ELM327 Bluetooth OBD2 adapter". Make sure to get a Bluetooth version, not Wi-Fi.
Plug the Adapter into Your Car's OBD2 Port
Locate the OBD2 port — usually under the dashboard on the driver's side. Plug in the ELM327 adapter. Turn your car's ignition to ON (engine doesn't need to start for most scans).
Download Car Kundali from Play Store
Search "Car Kundali" on Google Play Store, or click the download button on this page. Install and open the app on your Android phone (Android 6.0 or above).
Pair the Adapter via Bluetooth
Go to your phone's Bluetooth settings and pair with the ELM327 device (usually named "OBDII", "ELM327", or "V-LINK"). Then return to Car Kundali and tap Connect.
Start Scanning & Monitoring
Once connected, read fault codes, watch live gauges, check your health score, or start a trip. All data updates in real time directly from your vehicle's ECU.
⚠️ Important: Clearing DTCs (fault codes) does not fix the underlying mechanical problem — it only resets the warning light. Always address the root cause. If the Check Engine Light returns after clearing, visit a qualified mechanic.
Why Car Kundali vs a Workshop Scan?
Most workshops charge ₹200–₹500 just to plug in a scanner and read fault codes. Car Kundali gives you the same capability — and much more — completely free, whenever you need it:
- ✅ Instant diagnosis — no waiting for a workshop appointment
- ✅ Pre-workshop check — know exactly what's wrong before going in, avoiding unnecessary repairs
- ✅ Live monitoring on road trips — watch coolant temp, fuel trims, and battery in real time
- ✅ Used car inspection — scan a car before buying to reveal hidden faults
- ✅ Emission readiness — verify OBD monitors before your PUC renewal
- ✅ Performance testing — accurate 0–100 timing using OBD data, not GPS estimates
- ✅ Works offline — no internet needed once the app is installed
Frequently Asked Questions (FAQ)
Developer: NextInt Inc | This article is for informational purposes. Car Kundali is an independent app — not affiliated with any car manufacturer, the Government of India, or any OBD regulatory body. Always consult a qualified mechanic for repairs.