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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

Turbo Wheel Trims 101 – What’s in a Number

So you are looking to turbo your car and maybe even bolt on a turbo kit. The problem is you hear all this jargon...

FAQ – 1g and 2g DSM ECU Pinouts

We're asked on a regular basis on what pin and wire is what, what color wire does this do and where do I need...
Chase Briscoe leads Kyle Larson during the 2026 South Point 400 at Las Vegas Motor Speedway.

Chase Briscoe Dominates Las Vegas—and Survives Larson’s Final-Lap Charge

Chase Briscoe led 175 of 267 laps, swept both stages and survived Kyle Larson’s final-corner attack to win the 2026 South Point...
Split graphic comparing turbocharger boost at sea level and high altitude, showing identical 15 psi boost but greater pressure ratio and turbo speed at elevation.

Does Altitude Affect Turbo Boost and Turbocharger Speed?

Turbo engines handle elevation better than naturally aspirated engines, but maintaining the same boost can require greater pressure ratio and turbo speed.

FAQ – CCFL Headlights Explained

When it comes to aftermarket headlights, there's no shortage of options. HID, LED, Halo and CCFL headlights are all different no matter...

How To Test Drive your ABS

The anti-lock brakes (ABS) are a part of your car that you rarely ever think about, but it's probably your car's most important feature. As...

Mitsubishi AWD Tech – What is It

Mitsubishi AWD has been around since the late 80s, in the form of their early first generation turbocharged coupes. Powered by the legendary 4G63,...
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How Much Fuel Pump Do You Really Need? 255LPH vs 340LPH vs 450LPH vs...

Is a 255LPH fuel pump enough, or does your build really need 340LPH, 450LPH or a massive 525LPH pump? We break down fuel pressure, boost, E85, voltage and horsepower to explain how to choose the right high-flow fuel pump.