96 Ford Escort Hi idle speed.
On the high idle speed, I've changed the throttle body valve, the mass air flow sensor and there no visible vacuum leak, when I unplug the throttle bady valve
the idle cameback to the normal speed, for any reason the computer is sending too high values (wrong information) to that valve, I took the car to read the error codes and the code is p150b IAC overspeed error. Something is wrong around the idle control but looks like is not the valve.
Thank you
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