im helping a friend do a swap from a b18a to a b20 out of a 93 crv. i am having trouble with the vacuum system and was wandering if any1 had those diagrams to both those engines. the car im doing the swap is a 1990 acura integra b18a original. he got gunhoe without doing the reseach and bought the b20 and now im trying to make it work. i do apoligize about this being in the wrong forum just hoping to get faster results. thanks

 

You just just take stuff off of the b18a and put it on the b20 and it should work. The long blocks are essentially the same.