In the Accord; what all years did the V6 appear, more specifically in 90-93 did the Accord also come with a V-6? Thanks in advance..

The 90-93 did not have a V6
http://auto.consumerguide.com/auto/used/reviews/full/index.cfm/id/2047.htm (the specs on a 93 are in there)

The 94 shows as having a V6 http://auto.consumerguide.com/auto/used/reviews/full/index.cfm/id/2048.htm

honda started to sell accord v6 in 1994 as model of year 1995, so there is no 94 accord v6.