Is there a way to increase idle speed to 900 rpm with any non Chrysler scan tools or custom tunes. This would stop my MIL from coming on. Should be low enough idle to not affect driveability.
John

GDE could probably provide a tune that would raise the idle a bit but why would you want to do that instead of figuring out why the light comes on at normal idle?

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

All my figuring points to the ECM. Don't really want to fork out for a new one just now. Tempted to swap all necessary electronics from one jeep to another, if it is not too hard. Have two identical units(?), one with a wrecked engine.
John