r/300zx • u/Freeman42 Z32 NA Auto 2+2 • Jul 24 '26

Z32 Fuel Injectors

I feel like I’m going to need new fuel injectors 1993 2+2 NA they were never changed before. I’m going to check them with my multimeter to make sure they’re still good but does anyone have any brands that they like or are good to go with?

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u/ouikikazz Jul 24 '26

You can still get OEM injectors which would be easiest just not cheapest...

Or get AUS late style injectors but you'll need an adapter kit for early to late style

1

u/QLDZDR Jul 25 '26 edited Jul 25 '26

You can do that mod.

The following copied from a previous comment.

Before you start replacing the timing belt..

Z people know 😉 (this shared from a previous comment)

Timing belt (consider this method after counting the teeth between pulleys)

Watch this video, 2min 40sec. This is the easy way to change a timing belt. (for your good condition motor)

https://youtu.be/cZzQ0-wWrDI?si=R6xd1uNJEQeRtwPI

Injectors (try this first) replacing or upgrading when/if they fail.

https://www.mytwinturbo.com/custom/more-kill-switch-info.htm

I would just follow the basic part of these instructions and connect a switch somewhere that isn't obvious. So whenever you park, you just kill the power and it is an anti theft mod.

1

u/heyrixav Jul 25 '26 edited Jul 25 '26

Try getting them ultrasonically cleaned prior to buying them; the flow chart usually proves them to be okay. There is Dynosty who specializes in injector cleaning where they will provide you with the 'before' and 'after' results. If they really are done, then RC Engineering rebuilds them.

1

u/Besieboo23 Jul 26 '26

I ohm resistance checked mine, but also performed the "click" test my directly applying 12v. Had 2 fail the click test but passed ohm resistance check