1992 na zx need injectors replace new style or old?

[jlugo98]

hello my 300zx needs new injectors , should i just replace them (old style) or spend little more and replace them with new style with adapters? thanks

[nexus08]

My understanding is that the new style are not attacked by ethanol in gas. So if you are putting in new injectors it is probably worth the extra cost to get the adaptors and new injectors.

[jlugo98]

ohh ok!! but some people in some forums say its not worth it
because to change them its like 600 usd vs like 200 of the old style!

[DCaff300ZX]

I'd consider the mileage on your Z and it's general condition when making your choice- my '90 NA was at 200K when an old style injector went south, and with what turned out to be only 235K in her, the best decision was what I made: replacing it at the lower cost with a new, old style injector.
If your Z is at 100K-ish miles and in good condition, I'd say it's worth the extra costs upgrading to the new style which are mostly from having to upgrade the fuel line setup for the new style injectors or buying the adapter kit for the old style fuel lines and new injectors, plus the installation which involves removing the intake plenum. As mentioned the new style are safe with the ethanol in today's fuel.