2000 celica gts
I am a new celica gts owner mine is a 2000 gts with 379,960 miles on it. It has a cold air intake, one of the cylinders is new don't know which one and one of the coil packs are new I think that's all that's new/replaced on it everything else I believe is original, but i am getting multiple codes being thrown from p0300, p0304, and p0301 and p0302 those last two just once but the p0300 and p0304 more then the other two and also p0171 code and p0440, p0446, and p0441 those three at the same time and I have no idea where to begin. Any advice? I know what to try for the misfire codes but the EVAP codes and the bank 1 system to lean code (p0171) I have no idea, anyone have dealt with these before and figured them out could help me i would appreciate it.