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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

FAQ : Is My Exhaust Legal?

Easily one of the most asked questions of any automotive enthusiast, "Is my exhaust legal?" is one posed to many shop owners and smog...

FAQ : Honda Swap Combinations – What Fits What

If you are a fan of Hondas or Acuras and have heard of Honda Swap or wish to perform one yourself, you know...
how diesel engines work

FAQ : How Diesel Engines Work

When it comes to diesel engines, there's a fair bit of misinformation that can confuse you. Although it is still an internal...
Automotive PCM pull-up and pull-down circuit diagrams showing open and grounded sensor voltage readings

Automotive Pull-Up and Pull-Down Circuits Explained

An automotive pull-up circuit uses a resistor to hold a module input near a known voltage when no sensor, switch or transistor...

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...
Performance drivetrain gear-ratio calculation showing how engine RPM, transmission ratio, differential gearing and tire diameter determine vehicle speed.

How to Calculate Vehicle Speed by Gear Ratio, Tire Size and RPM

Choosing a transmission based only on horsepower capacity is one of the easiest ways to build a drivetrain that looks fantastic on...

FAQ – What is a Noid Light

An automotive noid light is to test the fuel injector operation in any EFI vehicle. Problems with your fuel injector can cause your engine...

How To Test a Chevy Impala MAF Sensor

When the Impala MAF Sensor in your 3.5 liter Chevy has gone bad, you're going to have a variety of issues with your sedan. This...