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View Full Version : sr20 fuel injector o ring?

clay9110
09-07-2009, 01:35 PM
Alright so since last mm, I've had a leaky injector. So im going to first resort to changing out both the o rings. But i've been doing some research and have come up with two different answers. Some say to use the o rings off of the kade rail, while i saw on a few searches that you use the 300zx tt o rings. I jsut want to get this figured out before i go out and buy them. Also when I go on autozones website to look for the o rings, they dont have anything listed for it.

so any help would be nice.
steve shadows
09-07-2009, 01:41 PM
Alright so since last mm, I've had a leaky injector. So im going to first resort to changing out both the o rings. But i've been doing some research and have come up with two different answers. Some say to use the o rings off of the kade rail, while i saw on a few searches that you use the 300zx tt o rings. I jsut want to get this figured out before i go out and buy them. Also when I go on autozones website to look for the o rings, they dont have anything listed for it.

so any help would be nice.

ka24de fuel injectors are the same o-ring part, make sure to get dealership equivalent parts
clay9110
09-07-2009, 01:53 PM
so my best bet would be to go to the dealership and get the ka o rings. also then why am i finding on zilvia and nico in so many places to use z32 tt o rings? this is confusing me so much.
steve shadows
09-07-2009, 02:05 PM
Same thing also

Basically what you need is the O-rings for a Denso Side Feed High Impedence injector.

The Z32TT, iirc uses these type of side feed High Impedence style injectors as well, so does the B13 Sentra SR20, the KA24DE motor and even some mazdas and mitsubishi
clay9110
09-07-2009, 03:05 PM
ok thank you very much.
clay9110
09-08-2009, 04:22 PM
Alright, so i pulled the fuel rail and primed the fuel system and no leaks. So now im really wondering how fuel is getting in my oil.
AznXstazy
09-10-2009, 09:07 AM
rings or leaky valves?
clay9110
09-10-2009, 03:08 PM
Is there anyway to check those easily, also someone else told me to check my pcv valve. All i know is that this is getting frustrating to me. any help is appreciated.
clay9110
09-13-2009, 09:00 PM
Got it figured out. the gas in the oil wasn't from a leaky injector. my pcv valve was stuck open so gas was getting in while under boost.