12+ P0177 Fuel Composition Sensor Circuit Range/Performance. Bat team discussions for p0177. Idle issues 99 lumina ok, here's new wrinkle that i discovered today:
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P0177 fuel composition sensor circuit range/performance. Circuit malfunction p0177—fuel composition sensor circuit range/performance p0178—fuel composition sensor circuit low input p0179—fuel composition sensor circuit high input. P0322 ic module 4x reference ckt no frequency.
