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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

Common Engine Knock Causes

Engine knock or detonation is the leading cause of engine damage for most performance vehicles. It's an inconsistent and improper ignition of the mixture...

How To Program your VQ35 Accelerator Pedal

After you've serviced your VQ35DE electronic throttle actuator, you will need to perform a series of programming tests to help the VQ35 ECU "learn"...

How To Sign a California Title

When you are selling a vehicle in the state of California, you'll need to know how to transfer or sign your California Title. Otherwise...

DTC P1121 – How to Service your Civic Throttle Position Sensor

The OBDII trouble code P1121 is due to your throttle position sensor signal being lower than expected by your ECU. Problems that arise from this OBDII...

FAQ: Internal vs External Wastegates

The question we often hear from customers about turbochargers or turbo kits in general is the age old debate of internal vs external wastegates....
Factory LS1 press-fit piston pin compared with aftermarket full-floating wrist pin and retaining locks

LS1 Press-Fit vs. Full-Floating Wrist Pins: What’s the Difference?

Factory LS1 wrist pins use a press-fit connecting-rod arrangement, while many aftermarket combinations use full-floating pins and retaining locks. Learn how each design works and which measurements matter.
Cutaway turbocharger diagram comparing a correct gravity-fed oil drain with a restricted return line and excessive crankcase pressure.

Why Is My Turbo Leaking Oil If the Seals Are Still Good?

A smoking turbo does not always need rebuilding. Restricted oil drainage, crankcase pressure and installation errors can force oil through a healthy turbo.

How To Avoid a Blown Head Gasket – GEN III

Blown head gaskets are nothing new for GM GEN III truck and van owners, who have found many different ways to avoid overheating. Despite...