By testing the ECU do you mean plugging in a scanner to check for codes, because I have an AutoXray scanner, and it shows no codes and the readiness monitor isn't complete after several days driving.
I don't think it's the pump, I can hear it when I turn the ignition to On, its a low pitched whirring sound for a short moment. Also, the car isn't suffering from gas starvation symptoms, like I said, it runs fine, but has hardly any power. I know the engine should only have like 115HP, but it feels like only 40 is getting to the ground. I'll check the coils tomorrow though. I'd be relieved if it was, that way I don't have to spend 200 dollars on getting a whole new one and getting it flashed.
Edit: Should the coils be bad, should I get the Niehoff coils or stick get the AC Delco? If Niehoff parts are reliable I'd rather spend 60 dollars instead of 100.
Also, the coolant looks kind of dingy, I don't think it should have any effect on performance though. Any ideas? I plan to flush it out.