I have my head off my 2.2 and the timing marks almost threw me at first until I thought about it.On the cam pulleys there is a notch that is to be lined up with the notch in the rear timing cover when installing the belt.There is a mark on the crank gear that is to the rear of the gear and it should be lined up with the mark on the back of the cover also.Now when I had all this lined up and pulled everything apart to do my valve replacement I noticed that my piston on the #1 cylinder wasn't at TDC!I thought oh #$%@ Haynes has done it to me again.Well I saw these arrows on the cam pulleys and I turned my engine to bring these into line with the notches on the cover and my #1 piston was at TDC.Anyway this really didn't matter for me in the scheme of things because I could turn my crank gear to line up the mark(which is not TDC by the way) and then set each cam pulley to their respective marks and install my new belt and all will be good.So I think if you need to find TDC on the #1 piston compression stroke just line up the arrows on the pulleys with the notches on the rear timing cover and you should be good.I'm simply stating what I observed on my '90 EJ22 so someone may want to investigate this further.I'll do a check by using my compression guage when I get my head back on and check the arrows to see what lines up.I'll post the results here.