Someone with a TD42 please help. Vac line

[Crx-ricki]

Someone please help. Have a GQ silver top patrol. I've been doing some engine bay tidying as the wiring was getting a little out of control. I had to disconnect the vac line which goes from the diesel pump. I comes off a regulator looking thing and faces back towards the driver. Can someone tell me where the other end goes! Whoops!

[Ben-e-boy]

Are you sure it is vacuum? Does it come from the side or top of the pump?

[nissannewby]

Ac idle up. Will go from the switch on the firewall to the white diaphragm that acts on lever for accelerator.

[tuckertrucker]

Good to get this idle up sorted to. I just had mine stuck ON without knowing it. So if the AC was off, the idle up was still on so I was idling at about 900rpm. So we tuned it back to 650 and that was all good. Until the idle up started to release the idle back down again and then the idle became about 450 rpm. very scary when it first happened. for a while had no idea what was causing my problem

[mudski]

Just disconnect the idle up. I didn't even put one in on my Patrol. Rev's only drop maybe 50 or so rpm with the a/c on.