How to Replace Direct Injector Seals on Scion FR-S

There are four injectors spraying fuel on each cylinder’s intake valve and four other ones inside each cylinder, directly spraying fuel in them at high pressure.

The latter ones are more problematic due to their working conditions and a broken seal to one of them will cause it to malfunction and wear out the respective piston / cylinder.

So at some point you’ll have to check and replace the injector seals as well as other small parts regarding the fuel system, procedure which is detailed in the video bellow.

This is a DIY guide and, as such, you must be aware the procedures described here involve some risks. autoevolution cannot be held responsible for any possible damage that might result while following this guide.