Madhurjya Dutta

Madhurjya Dutta is an automotive diagnostics educator, technical writer, and founder of OBDCode.org ‚ a trusted online resource helping thousands of drivers understand OBD-II codes, engine sensors, and real-world vehicle troubleshooting. With years of hands-on experience analyzing sensor behavior, failure patterns, and live data across hundreds of vehicles, Madhurjya specializes in translating complex automotive electronics into clear, practical guidance anyone can follow.

Car DIY

Why You Should Check Your Alloy Wheels Regularly?

Jan 11, 2026

•

4 min read

Why You Should Check Your Alloy Wheels Regularly?

Regular inspection of your alloy wheels helps catch issues early—before they turn into expensive or dangerous failures.

Madhurjya Dutta

Car Sensors

Jan 11, 2026

•

43 min read

Car Sensors Explained: What They Do and How to Diagnose Them

A car is equipped with numerous sensors that continuously monitor different operating conditions and send real-time data to the Electronic Control Unit (ECU)

Madhurjya Dutta

Car Anatomy

What Is a Spark Plug — and Why It Matters More Than You Think?

Jan 7, 2026

•

4 min read

What Is a Spark Plug — and Why It Matters More Than You Think?

A spark plug is a small component with a very big responsibility.

Madhurjya Dutta

Car Anatomy

How Your Car Actually Turns Fuel into Motion?

Jan 7, 2026

•

4 min read

How Your Car Actually Turns Fuel into Motion?

When you press the accelerator, your car responds instantly. The engine revs, the car moves, and everything feels seamless.

Madhurjya Dutta

Car Anatomy

What Really Happens When You Hit the Brakes ?

Jan 5, 2026

•

5 min read

What Really Happens When You Hit the Brakes ?

But underneath that simple action is one of the most important safety systems in your car, working in milliseconds to protect you.

Madhurjya Dutta

Car Anatomy

Jan 4, 2026

•

3 min read

What is a Differential?

Every time you take a turn, something clever is happening underneath your car.

Madhurjya Dutta

Car Anatomy

The Most Expensive “Silent” Part Under Your Car

Jan 2, 2026

•

3 min read

The Most Expensive “Silent” Part Under Your Car

Hidden underneath your car is a metal canister most owners never think about — until it becomes a problem.

Madhurjya Dutta

Madhurjya Dutta

Why You Should Check Your Alloy Wheels Regularly?

Car Sensors Explained: What They Do and How to Diagnose Them

What Is a Spark Plug — and Why It Matters More Than You Think?

How Your Car Actually Turns Fuel into Motion?

What Really Happens When You Hit the Brakes ?

What is a Differential?

The Most Expensive “Silent” Part Under Your Car

Car Owner IQ's Newsletter