The distributor is referred to as the "cam sensor". The scan tool needs to have the capability to read the "cam sensor" 'set' degrees. This is set to 0 degrees. Each movement of the distributor requires the engine to be revved over 2000 rpm, and allowed to return to idle before turning it again. It can be adjusted within +1 to 2, or -1 to 2 degrees of the crank timing at TDC, without turning on the CEL. They like it best overall to be at 0 degrees with the crankshaft at TDC.
It should fire off if you have it real close, but the check engine light will turn on, if it is not close enough to 0 degrees sync with the crank sensor #1 cylinder TDC compression signal.