tlordon

Bumpy.. Please help vacum layout also..

so i just got a LS400.. before any maintance i figured id just give it a good hose down.. i did that with the engine running (had just started it so it was cool) i let it run for about an hour after the hose and all was good.. even turned off and on again. and no probs.. so i go to get some food tonight and Bam.. Surging Idle from 1100-1800 and OUch when i put it in gear.. so i get it back home and i let it run for a bit surging.. i have a few vacume leaks and missing vac lines but thats not the cause as they where bothced before the wash.. could it still be a bit wet.or something got wet wile the rest was drying cause it was fine earlier.. . or could something have broke.. is there a link to a complete rundown of the vacum lines so i can replace and check them all.. also side note what is the thing with 2 vacume lines directly under the IAC connected to the coolant system.. (i saw its completely broken..) could my iac have gone to crap from a wash..