Hi check out the throttle position sensor on the intake body, is it sticking.
Try the fast idle switch does the engine increase rpm? drive it with fast idle on and see if it ticks over ok when you stop.
Do you have excess play in the throttle butterfly, Is the bypass butterfly all gummed up.
The throttle position code is 7, Open or short in tps signal/ Faulty sensor.
Code11 Is switch signals, A/c circuit /switch, A/C amplifier, TPS circuit
, Neutral start switch/Circuit, ECU.
If you need throttle sensor or ecu I have both spares and throttle body.