on video How to DIY - wiring harness restoration

Whether you need to customize your engine wiring harness or just want to improve its appearance, we offer an alternative to purchasing expensive aftermarket harnesses. Keep in mind that this is not a definitive guide on building wiring harnesses; rather, we show you some basic steps on how to properly restore/clean up your engine wire harness using a number of DEI products.

If you've noticed by now, the OE harness has been sheathed using electrical tape and plastic loom. Yes, it's cost effective on their part, but in all honesty, it doesn't look good. The factory-style split loom is an eye sore with its bulky appearance while electrical tape over time will "weep" adhesive and peel off, leaving a sticky residue that's a nuisance to remove.

The most important thing to consider before tackling this particular DIY project is deciding if this is a full-blown rewire job or a simple clean up. The more time-consuming wiring jobs will take a few days to a week to complete, so if this is your daily driver plan accordingly. Upon spending some time researching different methods of making wiring harnesses more clean and subtle, we decided to loom the harness entirely in heat-shrink tubing (no seams). We began by spending some quality time peeling off about a roll of old, greasy sticky, electrical insulation tape from our Subaru STI engine harness.

 

Whether you need to customize your engine wiring harness or just want to improve its appearance, we offer an alternative to purchasing expensive aftermarket harnesses. Keep in mind that this is not a definitive guide on building wiring harnesses; rather, we show you some basic steps on how to properly restore/clean up your engine wire harness using a number of DEI products.

If you've noticed by now, the OE harness has been sheathed using electrical tape and plastic loom. Yes, it's cost effective on their part, but in all honesty, it doesn't look good. The factory-style split loom is an eye sore with its bulky appearance while electrical tape over time will "weep" adhesive and peel off, leaving a sticky residue that's a nuisance to remove.

The most important thing to consider before tackling this particular DIY project is deciding if this is a full-blown rewire job or a simple clean up. The more time-consuming wiring jobs will take a few days to a week to complete, so if this is your daily driver plan accordingly. Upon spending some time researching different methods of making wiring harnesses more clean and subtle, we decided to loom the harness entirely in heat-shrink tubing (no seams). We began by spending some quality time peeling off about a roll of old, greasy sticky, electrical insulation tape from our Subaru STI engine harness.