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Looking for help with your vehicle? Do you see the dreaded check engine light on? have a problem with your car or truck and need a find a DIY guide? Our collection of How To articles can help you save money and time and get back on the road. No matter what issues in your vehicle you can find the how to tutorial to help you.
Whether you car problems are simple or complex, our guides are here to help. With just a digital multimeter at your side, you can test and diagnose most of your car issues with our How To articles. One of the other tools that is a must have when you want to fix a car yourself is the OBDII scan tool.
These tools quickly connect to your OBDII vehicle to read the Diagnostic Trouble Codes that are stored in your engine computer. Need a How To guide but can't find it in our archive? Leave us a comment or message us and let us know, we'll be glad to help!

Popular FAQ

2026 Acura MDX Type S performance SUV representing Acura’s indefinite production pause

Acura Pauses MDX Type S Production With No Return Date

Acura is pausing production of the 355-hp MDX Type S after 2026. Here’s why emissions certification matters and whether the turbo-V6 SUV could return.
Shielded sensor wiring blocks electrical noise from corrupting sensitive signals. Learn how to diagnose damaged shielding and repair it correctly.

How Shielded Automotive Sensor Wiring Works—and How to Repair It

Shielded automotive sensor wire protects small electrical signals from interference created by ignition coils, fuel injectors, alternators, starter cables, relays and electric...
Porsche Cayenne Turbo Electric launching on a drag strip during a 9.5-second quarter-mile test

The 1,139-HP Porsche Cayenne Turbo Electric Runs a 9.5-Second Quarter-Mile

Independent testing sends the 5,960-pound Porsche Cayenne Turbo Electric to 60 mph in 2.1 seconds and through the quarter-mile in 9.5 seconds.

FAQ : How to Modify Your 2G 4G63 MAF

If you are running rich with a slightly modified DSM, a cheap and easy way to help lean things back out is with the...

How To Test a Ford Fiesta MAF

The Mass Air Flow (MAF) sensor in your 1.6 liter turbocharged Ford Fiesta is a very important piece of your Ecoboost EFI puzzle. Providing...

How To Test a Ford Fusion MAF Sensor

The Ford Fusion MAF sensor in your 2.5 liter Ford sedan acts as the "eyes" of your Ford computer. When you depress...

What is the SAFC?

Today we'll be talking about the Apexi Super AFC, and How to Setup the Apexi Super AFC as well as it's many many variations. We...

How To Aim Your Headlights

The headlights on your vehicle serve to illuminate the road and any dangers that may lie ahead, but are too often neglected or ignored...