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I need a new idle air control valve, but when I go to the parts store the ones they bring up are different than the one that was on my car.. Everywhere I've checked(online too) is like that.. Is it possible my engine is a swap?? How would I tell?? It passed smog at a"test only" facility, so I didn't think it was.. Engine says D15B, but no 7 or 8 or anything after that.. It's a VTEC, an I thought it was a 1.5L. But now I'm not so sure.. Any and all suggestions are appreciated, and thanx in advance