Delica Canada | Mitsubishi Van Club

Hey Just about have the new engine installed but cant figure out where these vacuum lines go? anyone help me out?

Thanks

Joe

ok so I figured out that the one on passenger side of the engine bay is for the throttle control for the ac...any ideas on the other?

I can't tell for sure from the pics, but are the other ones boost pressure from the turbo, perhaps for routing to the wastegate, or a boost gauge, or are they in fact vacuum lines?
Jason

The solenoid on the side of the engine bay near the radiator (passenger) is your Boost control solenoid. It is important for your IP, and cannot be looped together as it will cause a vacuum which will engage the throttle. The lines on top of your valve cover are for the EGR. Ok to keep closed if the EGR valve is in its open position.

bionic wrote:The solenoid on the side of the engine bay near the radiator (passenger) is your Boost control solenoid. It is important for your IP, and cannot be looped together as it will cause a vacuum which will engage the throttle. The lines on top of your valve cover are for the EGR. Ok to keep closed if the EGR valve is in its open position.

Ok so the boost control solenoid does that get connected to the back of the throttle?

Added another pic to help get some ideas

Thank you very much!

Joe

Pajero wrote:

bionic wrote:The solenoid on the side of the engine bay near the radiator (passenger) is your Boost control solenoid. It is important for your IP, and cannot be looped together as it will cause a vacuum which will engage the throttle. The lines on top of your valve cover are for the EGR. Ok to keep closed if the EGR valve is in its open position.

Ok so the boost control solenoid does that get connected to the back of the throttle?

Added another pic to help get some ideas

Thank you very much!

Joe

Yes Joe, the vaccum line from the BCS leads to the rear of the IP. To test, join the BCS hoses together and you should see the throttle arm on the IP engage.

On my van that solenoid makes the engine idle faster when the aircon is turned on. When the Aircon is turned on, that solenoid lets vacuum from the back of the alternator operate the small cannister on the side of the IP, which pulls on the throttle arm.

Here's how the hoses go:

Vacuum is generated by a vacuum pump on the back of the alternator. One large vacuum pipe goes to the brake booster, one smaller pipe goes to one of the EGR solenoids, and to the aircon idle speed solenoid (identified by Bionic as a BCS, not the term I would have used for it, but you Canadians are crazy so who knows.)

Boost pressure comes from the two outlets on the turbo (the cloth covered lines). One boost pressure line goes to the wastegate cannister, the other goes to the injection pump boost sensing cannister (the round thing on the top).

Your engine appears to be from something that had more connections- those fixed lines look more complicated than a Delica should be.

Ok so when I had the engine running a actually foung that a small amont air was comming out of the two lines that are joined together on the top of the valve cover...

Looking at your photos it looks like one of those pipes goes to the turbo, the other goes to the IP boost can. You need to plug that junction, or your IP won't increase fuel when the turbo boosts, which makes for a very slow deli.