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High Idle for AX15 / 5Spd XJs

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High Idle for AX15 / 5Spd XJs

Old 01-13-2019, 06:27 PM
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ClassicCarl's Avatar
Join Date: Sep 2014
Location: Edmonton AB Canada
Posts: 82
Year: 1999
Model: Cherokee
Engine: 4.0L
Default High Idle for AX15 / 5Spd XJs

Hey all,

ive been wanting a high idle switch for my 1999 AX15 equipped XJ. From what I can find online, the ecu ignores this on the 5spds which really sucks.

Is there any other way around this? Where I live we get crazy bone chilling cold (-22f / -30c) and it would help big time to warm up the cabin / keep it warm when at a standstill.

Does anyone one know a way without doing a hand throttle? Perhaps I can find away to mess with the signals going to the idle air controller. Does anyone have info on how the idle air controller works?

Thanks guys! Really want to find a way to get this working on my jeep.
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