Having a 1988 olds cutlass with 2.8 l FWD --Direct injection type- (not carbed or TB) I need to know where the vacumn line goes - coming from the HVAC system @ Crusie controll area in engine compartment. ?? Line in question comes from that cruise area to =?? ?? to where? That line hooks to what ? Where at? There is a canister purge solenoid with 2 vac lines on the firewall mounting bracket-does it go to that?? Im lost on this line -from the intake (top) area there is a 4 line vacumn hookup on this car- 1989 has 3 only!! There is no canister purge solenoid mounted to the canister on this car -that is mounted on the firewall area bracket bolted to the rear of the intake area. Help =Please. lost on this.

i posted the diagram in the first thread you started, dont think anyone would have anything more than that for a car of that age

https://www.gmforum.com/oldsmobile-1...3Dhelp-308288/