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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 ofย 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

A wire can look perfect while its copper conductor is broken inside. Learn how to reproduce, locate, confirm and repair an intermittent harness fault

How to Find a Broken Automotive Wire Inside Intact Insulation

A car wire can be broken internally even when its insulation looks completely normal. Repeated bending, engine movement, vibration, heat or tension...
Multimeter testing a shared five-volt sensor reference circuit connected to several engine sensors

How to Diagnose a Shared 5-Volt Reference Circuit

One failed sensor can pull down a shared 5-volt reference circuit and make several unrelated systems report trouble at the same time....

FAQ : Mitsubishi Evolution X ECU Pinout

The Mitsubishi Evolution has carved it's legacy out with rally fans, racing fans and video game experts the world over and rightly so. With...

5 Engine Mods to Increase Performance

When you want to modify your car, there are many engine mods to choose from. Some of these parts can help performance and gas...

Nuts and Bolts – How To Read Bolt Grades

Most car guys will remove, install and replace bolts many times and never look at bolt grades. After all, if it's not broke why...
A connector can pass continuity and still fail under vibration. Learn how a terminal drag test finds loose, spread or backed-out terminals safely.

How to Perform an Automotive Connector Terminal Drag Test

An automotive connector terminal drag test checks whether a female electrical terminal grips its matching male pin tightly enough to maintain reliable...

FAQ โ€“ Toyota MR2 Turbo ECU Pinout

The Toyota MR2 as it's known in the United States was actually part of a redesign in 1990 that led to the chassis we...

FAQ – Spark Plug Wires 101

Spark Plug Wires are some of the most common upgrades for most of our customers, and yet it's one of the components we receive...