Am looking for a source to buy a special tool for measuring an adjusting the ICV valve in an 87 E30. Have tried dealer to no avail since they say it is no longer availible. Part # is 88 88 6 900 311, it connects between ICV an Icv connector to allow the use of Multimeter to adjust within specs. If anyone knows how to make one, or uses some other way to adjust ( don't say screwdriver please )drop me a line Bruce