so im buying this 90 crx dx with a dx tranny, d16y7 with an crx si ecu, he tells me it sounds like the heads ar clicking when its running(some ppl on here said its probably the timing. thanks) and he said that i kinda bogs down in low rpms but still runs fine. im not sure exactly what he talking about, he said that he that it was the plugs maybe they were the wrong ones or something. i dont know. i was thinking that if the ecu was a si auto it could effect it. or maybe the air flow sensor was bad. on my subaru it was doing th same thing and the air flow sensor was bad. if this makes sense to anyone and they could help it would be appriciated. thanks