[Blue Bowtie]

Although verifying correct fuel pressure (11-13 PSIG) and making sure the injector pods are not leaking would be a good idea, injectors themselves should not cause a high idle. The engine is in open loop when first started and is solely under ECM control based upon coolant and intake air temperature and time from start. Leaking or clogged injectors would only create a lean or rich condition but not control idle air (the thing causing the higher RPM).

It would be good to verify that the CTS and IAT are reporting correctly to the ECM, and that the IAC is both clean and lubricated so that it can step properly. It is also important for the throttle body bore and throttle plate to be clean so it cannot stick. While cleaning out the TB, make sure the throttle shaft is not loose. Worn bushings can allow the throttle plate to become wedged in the bore and bind in a partially open position.