I have a 2000 4.0 tj and have heard of replacing the stock injectors with 4 hole nozzle injectors and was wondering part # or other specifications so I can purchase them. Has anyone done this and was it a noticeable improvement?
Injectors
- Thread starter John Ley
- Start date
You won't get the tiniest increase in performance from them but some claim they make the engine idle a little smoother. I personally am more than a little skeptical of that claim which I feel is more likely caused by the Placebo Effect than anything else.
Along with what Jerry stated a smoother idle can also be due to having new O rings in the manifold replacing old dry cracked rings that may very well be causing a vacuum leak.
