Unfortunately, while resealing the valley plate for the second time due to rolling the coolant pipe o-ring I wasn't so lucky when disconnecting a direct injector. When ordering the new direct injector I did notice there are different color marks. Are these marks referring to a pen/marker color added to the infector or is it referring to the color of the connector gasket? I ordered a "green" injector as there was a green mark on the injector as I was under the impression the color was designated by a pen/marker. I received the new injector and it has a black pen mark but a green connector gasket. Should I have bought a "brown" injector as the original has a brown connector gasket? I tried searching for the information but that was to no prevail.

 

There's zero in the service manual about injector selection, and I couldn't find anything in Toyota Technical Training covering direct injector sizing - only pull the injector carefully and replace it in the same spot. I see in the parts there are four sizes related to colors, but whether they're using a marker or the seal color to designate this is a question for Lexus/Toyota techs who have been trained on this. Nothing I can find on the web says anything about the subject.

 

Thank you for your input!

 

Replace the injector with the same color injector connector body seal in your picture.
you broke a brown injector, so thus replaced with brown, not green.

Also, the white Teflon seals are one time use. If you pulled the rail, it's best practice to rebuild all the injector seals. You'll risk breaking another doing so.
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I believe this has to do with final injector impedance when built.

 

Viprez586, you mentioned "If you pulled the rail.." I was under the impression that was the only way to replace the injectors. Is there alternative to not pulling all of the injectors? Like you pointed out, the more the injectors are handled the higher change of breaking another.

 

I should've said "when" instead of "if".

 

Hi. I put new teflon seals on and then torqued the rail down. Then broke one of the injectors connecting the harness, so had to pull that rail out. Now I'll replace the reflon seals again. I noticed when i pulled the rail out again, the teflon seals cane out stretched a little. Im assuming that's normal? That happens when they get torqued down? I used the toyota/lexus twflon seal tool to install the seals, they were tight on there.