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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

Acura RSX start-and-stall diagnosis showing immobilizer, fuel pressure, throttle body and injector tests

Why Does My Acura RSX Start and Then Immediately Stall?

If your Acura RSX starts and then immediately stalls, check the immobilizer, fuel pressure, throttle body, vacuum system, sensor data and idle learning before replacing parts.

How To Replace a Ford Fiesta MAF

Variable valve timing is nothing new to the world of performance automobiles, but the Ford EcoBoost may be transforming small displacement engines all together....

2005 Subaru STI ECU Pinouts

We break down the relevant STI ECU Pinout for the 2005 Subaru WRX STI, and show you what wires you will need if you are...
Automotive sensor low-reference circuit returning to the PCM compared with chassis ground

What Is a Sensor Low-Reference Circuit—and How Do You Test It?

A sensor low-reference circuit is the dedicated electrical return path a vehicle’s control module uses as the zero-volt baseline for a sensor...
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.
Dial indicator measuring LS1 crankshaft end play at the crankshaft thrust bearing

LS1 Crankshaft End Play: What Is the Correct Thrust Clearance?

LS1 crankshaft end play should measure 0.0015–0.0078 inch. Learn where the No. 3 thrust bearing is located, how crankshaft end play is measured, and what to check during an LS1 engine build.

FAQ : Acura RSX ECU Pinout

It wasn't so long ago when Honda swappers took a look at the complexity that a K series swap included with a bit of...
P0135 Ford

P0135 Ford 2.3L – Test a Ranger 02 Sensor

The P0135 Ford OBDII check engine trouble code signals an issue with your upstream oxygen Ranger 02 Sensor. The specific error code...