idle speed in this heat

[bennno]

just out of interest, what are your cars idling at in this heat?

mine seemed to drop to 5-700 rpm in the 35* heat of lunchtime

bennno

[ringram]

Idle speed is based on engine temps. So its possible a higer engine temp means a low idle speed. Its all in the tune

[moosepig]

Have never noticed any change of idling speed with ambient temperature. Usually a bit faster when engine very cold when first started up, but not for long. Usually idles at about 800 to 900 rpm (indicated).

[bennno]

yes thats probably about right, it seemed to be going between 600 and 900 in the 35* heat earlier...

Bennno

[ringram]

Yeah its not based on ambient, but Engine Coolant Temp. Which is why it starts of faster and drops as the engine warms up.