Misconceptions About OBD Codes: Why Your Car Still Needs a Qualified Mechanic

April 1, 2016

Misconceptions about Scanning Your Car

 

It’s happening again… your trusty car is failing and you have no idea why. You call your best friend for a lift who mentions that all you need to do is get your car scanned and the code will tell you exactly what’s wrong. Who needs a qualified mechanic ?

 

What is an OBD (On-Board Diagnostic) Code?

Your friend is partially correct. Mechanics use what are called OBD-II or OBD2 trouble codes to help figure out what is wrong with your automobile. Mechanics plug a portable scanner into your car or truck’s diagnostic computer and receive a code that explains where the trouble is originating. For example, code P0087 indicates that the fuel rail/system pressure is low.

Why OBD Codes Aren’t Enough

While more specific than a simple “check engine” light, codes can still be vague and do not fully specify the nature of the problem. A scanner may report multiple OBD codes making it difficult to decide where the problem is originating. Or an OBD code may refer to an entire system (malfunction in hydraulics) which needs a closer inspection. While the codes are certainly helpful, they do not eliminate the need for further diagnostic testing.

The Need for a Qualified Mechanic

While it is certainly possible for you to find out these OBD codes for yourself, it can difficult or dangerous to interpret them without help. OBD codes certainly help mechanics by locating a general area which may be causing the problem, but it requires a detailed diagnostic from a professional to find and fix your car problem safely.

 

If your car is having trouble in the Wilmington area of Northern Delaware (DE), contact Paul Campanella’s Auto & Tire Center .

 

Man with arms crossed, smiling in a car repair shop with a car in the background.

What Auto Repair Shops Have Good Reviews Near Me?

July 15, 2025
If you're searching for an auto repair shop with great reviews, you’re not alone. Choosing the right mechanic can make all the difference in keeping your vehicle reliable, safe, and performing at its best. With so many options out there, how do you know which shop you can trust?
Futuristic car in a high-tech garage, with holographic displays and tools.

The Future of Auto Repair: How AI Is Revolutionizing the Auto Service Industry

July 15, 2025
In this article we discuss where AI is now, where we predict it’s headed, and when we can expect to see robots working alongside mechanics.
Man with a gray beard looking at his phone with the hood of his truck open in the background.

Who Offers 24-Hour Car Repair Services Near Me?

July 15, 2025
While we may not operate 24/7, we guarantee that if you book an appointment in the morning, we will have your vehicle looked at the same day.
Premium gas question. Gas pump nozzle with 93 octane label, car in background, dark setting.

Is Premium Gas Really Worth the Extra Cost?

July 15, 2025
Let’s explore the world of octane ratings, engine needs, and whether premium gas is a luxury worth buying or just a fancy way to empty your wallet.
Paul Campanella Auto Service: Exterior of auto repair shop with cars in bays, employees, and customers.

Paul Campanella's Auto Centers Expands to Talleyville, DE

July 15, 2025
TALLEYVILLE, DEL. – Paul Campanella’s Auto Centers, a leader in full service automotive repair and maintenance, proudly announces the grand opening of its sixth location at 3805 Concord Pike, Talleyville, Delaware on Monday, June 16, 2025.
Car being inspected by a team of mechanics at a service station.

How to Make Sure Your Car Passes State Inspection Without Stress

July 15, 2025
A little preparation can go a long way. Here’s what you need to know to make sure your car passes inspection the first time.

Winter Car Care: 7 Essential Tips for Brake Safety and Performance

November 6, 2023
In this blog post, we will discuss essential tips for maintaining your car's brakes in the winter, keeping you and your passengers safe as you navigate the icy roads.

How To Avoid Damaging Your Car Side Mirrors

October 30, 2023
We often forget the importance of our side mirrors, which are essential for our safety and driving accuracy. A broken side mirror can quickly spoil any driving experience, leaving us feeling helpless and frustrated.

6 Ways to Protect Your Car Battery in Cold Weather

October 25, 2023
As winter's chill settles in, taking steps to care for your car battery becomes crucial. A healthy car battery is your lifeline when the temperatures plummet, ensuring your vehicle starts reliably on frosty mornings and keeps you safe on the road. In this blog post, we'll explore some essential tips for maintaining your car battery during the winter months. From understanding the effects of cold weather on batteries to practical steps you can take, we've got you covered.

Winter Car Care: 7 Essential Tips to Prep Your Vehicle for the Cold Months

October 10, 2023
As the days grow shorter and temperatures drop, it's time to start thinking about prepping your car for winter. Harsh winter conditions can take a toll on your vehicle, leading to breakdowns, accidents, and costly repairs. To ensure your safety and keep your car running smoothly throughout the cold season, follow these essential tips for winter car care. In this blog post, we'll cover everything you need to know, from inspecting your vehicle to preventative maintenance.