i know, i'm going to go on and on so thanks for your input & patience everybody!
Okay, so as I understand it, yellow injectors are 1.7, and green are 2.0 - and they are different flow rates & etc. well, my 2.0 FI has 2 green and 2 black injectors. can't read the part #'s. i'm assuming the blacks are rebuilt/aftermarket 2.0.... any ideas how i can test this? is it related to resistance? if that's the case, the injection is not hooked up to power, so how do you test it?