Start up

[Kev1976]

Hi all.
Could anyone help with this please. When I start car and hear engine start I have to keep my foot on throttle to keep in idling for about 1 minute before I can release throttle. It then idles great with no problems. If I don't keep foot on it will go down to 500 rpm then cut out. If I then try to start up again the car will just turnover and not start. 30 mins it will start. Thanks

[Discopotatoes]

Dcheck the stepper motor is clean then base idle

[tonys]

As above