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the end that goes into the engine, the four little ones on the end, what do they do????

Perhaps post up a pic if you can. Most Nissan injectors have a small plastic cap ('pintle cap') at the manifold end of the injector. Part of it's purpose is to provide a sealing surface against the injector to manifold o-ring. They can crack and fall apart with age and heat, but are easily replaced.

Hey guys,

i just took my injevtors out and accidently broke some of the pintles off on my injectors, what does this mean can they be used or what is the go

I am led to believe that the pintle caps affect the spray pattern of the injector. If it is broken then I would suggest getting replacement items. They shouldn't cost you an arm and a leg.

Cheers

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