cold idle speed

[COOPS]

the cold idle speed on my 92 NA seems a bit erratic..when it first starts it sits at just above normal idle (around 1000rpm) and feels as tho it's gonna stall, but if I drive it 50 yards down the road and stop, it idles at about 1750..which seem really high!
is it an airflow sensor or something on the blink??
ta,coops

[nacho]

the cold idle speed on my 92 NA seems a bit erratic..when it first starts it sits at just above normal idle (around 1000rpm) and feels as tho it's gonna stall, but if I drive it 50 yards down the road and stop, it idles at about 1750..which seem really high!
is it an airflow sensor or something on the blink??
s

as far as i am aware the car should idle at around 1500 - 1700 and then come down to 800 - 900 rpm when warm. sounds like something is sticking when you first start the car.

[chrisbilling]

Have you checked ecu for error codes sounds like air temp sensor or cold start valve

[the-dog]

they have coolent temp sensor, i would check that coz i know even if you don't bleed the coolent prop and you av air locks the idle will be erratic..