high idle

[bad2bone]

car fires up strong but idle is super high and at times in park can stumble to almost kill without applying fuel. looking for diagnostic recommendation and adjustments.
thanks
Happy Holidays to you and yours!

 

[berserker6]

Scanmaster? If so post numbers at warm idle

 

[sdteb]

car fires up strong but idle is super high and at times in park can stumble to almost kill without applying fuel. looking for diagnostic recommendation and adjustments.
thanks
Happy Holidays to you and yours!

I'm having the same exact issues

 

[mikestertwo]

car fires up strong but idle is super high and at times in park can stumble to almost kill without applying fuel. looking for diagnostic recommendation and adjustments.
thanks
Happy Holidays to you and yours!

What chip are you running? You could have a bad O2 sensor. Does it do it every time on startup or just when the engine is cold?