All:
New to site.
Working on a 2003 CRV showing P0301 and have checked coils, changed plugs, checked resistance across the injectors and done a compression test.
I'm down to the injector plugged or buggered up and not spraying properly.
I have 1 new injector and 8 new o-rings for top and bottom.

The schematics show a second o-ring or an insulator on the cylinder side. Finding these on-line for purchase it next to impossible and they are 5 bucks each at the dealer.
Dealer states no one has ever ordered them before.

Are they actual o rings or a reusable insulator?
If they need to be replaced, anyone know of a better place to purchase other than the dealer?

Thanks!

NW