In this blog post, we discuss two different types of grounds, power grounds compared to signal grounds. You can find our basic grounding system information here. Power Grounds A power ground is a ground that runs something high current, like a motor or a pump. Some examples would be the...

This blog discusses what the atmospheric/barometric pressure sensor does and why we recommend keeping it active in your car. Atmospheric and barometric (we'll use atmospheric from here on out) are synonyms for the sensor that measures the ambient air pressure around your car. This sensor allows the Engine Control Unit...

  Dear Valued iWire Engine Swap Customers, It's probably best to rip the band-aid quickly. I am writing to let you know that we will conclude our engine swap merge services in the Spring of 2025. This will give us the bandwidth to continue growing our new products, including iVSS...

In this blog, we discuss information about installing a new seat in your Subaru. This could include installing power or heated seats, race car seats, or the effects of switching your center console.  For all the cases below, there is one important thing to note: Many cars have airbags and...

In this blog post we talk about the jumper harness on your Subaru transmission’s Vehicle Speed Sensor (VSS). This applies to 99-07 Subaru models with a 3-wire VSS.  Click here to learn more about VSS Sensor Types of all years   Types of VSS Connections All of the vehicle speed sensors...

In this post we talk about that weird blue tape found on Subaru wiring harnesses. This will be a rather short one, but it's a pretty helpful piece of knowledge. The blue tape is for the manufacturer to have components that are found in all harnesses, but are not used...

In this blog post, we'll discuss some basic ways to utilize a multimeter to test a few common issues on your Subaru. We carry a very inexpensive but useful multimeter that you can purchase to help with your troubleshooting. We use this in all of our examples, so it would make it...

In this post, we talk about what happens with the USDM PCV Diagnosis Connector and the JDM STi Manifold IAT sensor when swapping a 2001-2006 JDM WRX or STi in an 2004-2005 USDM WRX. If you need a replacement engine harness for any of these models, we carry it here....