First some essentials:
Do you have a computer at home that can receive a photograph (scan) of a manual page?
Does your Zoo have airconditioning?
Do you have an email address?
To set your idle you should unplug the connector at your fuel pressure regulaor and plug the vacume line to the charcoal canister. Turn off any accessories... fan, AC etc.
Warm up engine to operating temp.
Then turn idle screw located on back of throttle housing. It can be seen well if you were to look from the front passenger seat.
I suspect that my problem is that the vacume lines to the combination selinoids have been switched around. They are not as the manual says they should be.
1993 190E 2.3
2000 Toyota 4x4 Tundra