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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

Ford Mustang Supercar climbing Mount Panorama during the Bathurst 1000 weekend.

Ford Gets a Bathurst Engine Change After Altitude Testing Reveals Power Loss

Supercars has approved a Bathurst-only Ford Mustang engine change following barometric testing. The decision highlights why atmospheric conditions matter to engine parity.

What is Engine Knock

Engine knock is also known as pre-ignition or detonation. There's several common reasons what cause knock in your engine. When your engine is running,...

How To Test a Chevy Lumina MAF Sensor

The Chevy Lumina MAF Sensor is a vital part of your EFI system. This pass through mass air flow sensor reads information about the air as...
TOPDON and competing OBD2 diagnostic tools compared on a professional automotive workbench

OBD2 Scanner Brands Compared: TOPDON, Autel, Launch, Innova and ANCEL

We compare the major OBD2 scanner companies by diagnostic depth, bidirectional capability, software costs and the type of owner or technician each brand serves best.

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...

How To Service your 2JZ TPS

You finally got your 2JZGTE or 1JZ engine swap into your car and the moment of truth is upon you. You try to crank...

Best Junkyard Turbos and How to Find them

Putting together a homemade turbo kit from junkyard turbos is one of the oldest tricks in the book. Most aftermarket turbochargers can cost you...
Dial indicator checking LS1 crankshaft runout at the No. 3 center main journal

LS1 Crankshaft Runout: How to Check If an LS Crank Is Bent

LS1 crankshaft runout is checked at the No. 3 center main journal with a dial indicator. Learn how to measure crankshaft straightness, identify excessive runout, and determine whether an LS crank may be bent before assembling the short block.