Q45 standard model 1994 fuel injector specs

[Bob V]

The dealer notes 3 types of injectors- White mark, black mark and no color. A local re-builder told me they were all the same.Is that correct or what is the difference between the three?

[Repo Man]

Welcome to NICO Bob! I don't know offhand the answer to your question, but if elwesso or Q45Tech can jump in here I'm sure they'll know.

I'll bring it to their attention.

[Q45tech]

For all practical purposes no material differences or at least none that are documented.

[maxnix]

Thought the color dots only applied to the earlier single pintle injectors, not the later rotary disc injectors?

[elwesso]

Yeah theres no difference, dont worrry about it.

[silkysmoothyjud]

the dots will help identify OEM injectors as opposed to botch or some other bs. Why do those other injectors suck so bad? They look the same as OEM, without any dots. Cold natured junk is what they are....

[Jesda]

I've heard that the spray pattern was different. Real-world messing around under the hood proved to me that they're all the same.

[maxnix]

I've heard that the spray pattern was different.

The spray pattery of the single pintel and the rotary disc is different in part due to the different lower intake runner design.

I don't recall any dots on the later rotary disc models.