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How To Test a Mazda B2300 TPS Sensor

When your Mazda B2300 TPS sensor begins to fail, it can cause a bunch of issues with your light duty truck. The TPS is...

FAQ – Honda Fit Ecu Pinouts

The RME-A11 and RME-A89 ecus are found in the 2007-2008 GD Honda Fit and Honda Jazz and can be found behind your passenger side glovebox,...

LS1 ECU Pinout – 1999-2002

Rounding out our LS1 engine guide is our LS1 ECU pinout article for year ranges between 1999-2002 F-body vehicles. This ECU pinout is accurate...
Automotive PWM waveform showing 25, 50 and 75 percent duty cycles controlling a vehicle solenoid

What Is PWM in a Car? Why Your Multimeter May Be Lying to You

Automotive PWM circuits rapidly switch power or ground to control components. Learn how duty cycle works and how to test it correctly.

FAQ : How to Determine Injector Size

Determining what size fuel injectors you need for your project car is a common question we are asked here at Pro Street. No matter...

Top Fuel Economy Myths

Everyone has heard some of these popular fuel economy myths or tactics passed on by a friend or online message board, promising increased fuel savings....

How To Test a Nissan Sentra MAF Sensor

When your Nissan Sentra MAF Sensor begins to fail over time, it can cause your 2.0 liter Sentra to run poorly. MAF stands for the...

How To Change your Car Air Filter

If you have had your oil changed recently, chances are the mechanic working showed you just how dirty your car air filter is. Because...