Kyle from Nice Guys Garage & Speed Shop walks through diagnosing and repairing the engine wiring harness on a 2013 Subaru Outback 2.5i with the FB25 engine. This information also applies to 2010–2014 Subaru Outback and Legacy 2.5i models using the same engine platform.
If you’re dealing with intermittent misfires, sensor codes, oil-soaked wiring, brittle insulation, or random electrical issues, the engine harness is a common culprit on these Subarus. Kyle shows you where the problem areas are, how to inspect the harness properly, and how to repair damaged sections so the fix actually lasts.
In this video, you’ll learn:
Common failure points on the FB25 engine wiring harness
How oil leaks damage Subaru wiring over time
How to inspect, unwrap, and trace engine harness circuits
Proper wire repair using solder, crimp, and heat-shrink
When repair makes sense vs replacing the harness
This is a real-world diagnostic and repair guide aimed at DIYers and techs who want to fix Subaru electrical problems the right way.
Don’t forget to like, subscribe, and follow Nice Guys Garage & Speed Shop for more Subaru diagnostics, wiring repairs, and honest garage how-tos.
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Where did you get the harness
I didn't know they made whole wiring harness assemblies like that, about what does one of those cost?
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