What is IIRC? The voltage regulator is within the alternator (same part)? Autozone guy tested some stuff and said alt putting out only 50 amps, should be more like 90-110. He also said voltage regulator dead. Battery tests weak, but OK. I have battery light on and cleaned a little corrosion on the positive terminal. Car starts fine and runs perfectly.
05 D20 ZX3:
F2 CAI, Trubendz 2.5 exhaust, Tom's Tune, Eibach Sportlines, black SVT wheels