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Port Orchard, WA
This morning while idling my check engine light came on. Checked the codes to be p0120 and p0770, or throttle position sensor and the E solenoid. After I read the codes I reset them and then went and did a complete fuel system and automatic transmission flush, as well as changed out my differential oil (it was pretty dark instead of water like). After the fuel system cleaning my sometes erratic idle went away. Could all of this fixed the issue? On a side note, I was getting horrible gas mileage for the past month or so.