Need help bad

[jsmith01]

So on my wife 01 Yukon 5.3l I have changed all 02 sensor, egr valve idle air control valve intake gaskets. if we let it sit out side over night anything under 30* it runs like sh** now no codes any help I also cleaned the mass air and t/b

 

[jsmith01]

just so you know it was the tps sensor but thanks

 

[ezdaar]

congrats on the fix.

 

[HoS]

Seems odd that the temp would have an effect on it.