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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

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...
2002–2003 Acura RSX towing guide showing flatbed transport, front-wheel-lift towing, and Honda’s emergency towing speed and distance limits.

Can You Tow a 2002–2003 Acura RSX With the Front Wheels on the Ground?

Honda recommends flatbed transportation for the 2002–2003 Acura RSX. Here's what the factory manual says about wheel-lift towing, front-wheel-down towing, speed and distance limits.

How To Install DEFI Boost Gauge

The boost gauge is one of the most important items you can ever install in your turbocharged or supercharged vehicle. The importance of this...

FAQ : How the Catalytic Converter Works

Catalytic converter devices are emissions control components for your vehicle that convert the exhaust fumes of combustion from your engine, and limit the amount...

How To Install a Honda Civic Air Fuel Gauge

If you need to modify your Honda Civic by installing a power adder like a turbocharger, knowing how to install a Honda Civic air...

How To Smog your Honda Swap

Emission tests and smog tests are a difficult roadblock for any engine swapper, and today we'll be showing you how to smog your Honda...

FAQ : LS1 Rocker Arm Ratios

LS1 rocker arm ratios are fairly standard across the board, with a 1.7:1 ratio for all the GM GEN III cylinder heads with the...

FAQ – Spark Plugs 101

Here is a sampling of the top questions we are most commonly asked about spark plugs, spark plug gap, heat range, resistor plugs and...