While I might debate to some extent about whether the cam mark should be pointing up or down (I have had success specifically with a 1.6 16-valve MFI engine -- the one with four injecters -- setting the cam and crank pulleys with the marks pointing up) I am at a loss about the "E" or "I" marks. Perhaps you have a 1.6 that is newer than 1995 unit and the markings are different? If you do have a factory cam pulley (at least 1993 or older), there is an dot or arrow stamped into the face of it. The "up" and "up" alignment should look like this:
(from Chilton's Total Car Care '93 Sidekick CD available through Ack's FAQ)
Right-click and "save as" the picture to your PC to see more detail. Pictured is a cast or forged pulley. Some engines have a stamped steel pulley similar to the older 1.3 engines.
This is the same setup as published in the Chilton Suzuki Samurai/Sidekick Geo Tracker manual and the Haynes manual (which is much more useful as campfire kindling...)
If you have an aftermarket pulley, use the method described in my post (above) to find the Top Dead Center (TDC) position for cylinder 1 on the camshaft which would be equivalant to "dot or arrow up".
Hope this helps!