On the Stang, plug the tuner in and read and clear the cars diagnostics (DTC's) in the advanced features area of the tuner. Write down any codes if they come up, but if no codes go thru the clear process anyway.
Then on the first restart of the motor, idle it up 3-400 rpms over the stock idle for 2 minutes. This should train the idle for the engine.
The Sport trac, I would do the same minus the training of the idle.
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