Are they interchangeable between the hf, dx, si models? This is for a '90 crx hf. I am looking at ebay and amazon and some look different than others, while the listing say it'll fit my year and model, the picture looks nothing like the one I have. I want to be sure to buy the right one. Thanks.

 

From what Ive seen dpfi ones are different than mpfi ones.

 

i tend to agree, afaik the hf and si would work interchangably, while the dpfi one will not.

 

Thanks guys!

 

Theyre all the same, even if they look different, they function the same

 

I know for sure dpfi iacv is not interchangable with mpfi ones, not sure about the hf vs si one.

 

Not true. I can go take a picture of the dpfi and mpfi ones sitting in my garage if you need proof

 

Well that is strange, as I have a tried putting a dpfi iacv on my 91 si and it would not fit at all, I don`t remember if it was because of the plug or the bolt pattern. If you could take the pic and remove all doubt it would help someone in the future I am sure.

edit: just to clarify, the plug will connect put I think it has the wrong angle and interferes with the manifold.