2005 executive PO 120 error message
What is "executive"? on a Corolla? Anyway That's TPS, Throttle Position Sensor. See http://www.obd-codes.com/p0120
The ECU takes readings from the vehicle speed sensors, the MAF and MAP and rpm of engine. If they don't agree, if the car is not going at the speed it should be compared to the voltage the ETC is putting out (5 Volts is WOT Wide open Throttle) is will throw the P0120 code. For example if the MAF shows a very high air flow and the car is only going 20 mph that's a discrepancy
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