Mate, Arfa.

I can get low idle when I disconect the battery for about 30mins. Then restart the engine, warms up and Idles smooth as. Perfect.
But once I take it for a drive and the ecu wakes up It then goes back to high Idle when warm.which is around 950 to 1000 rpms.

I will have a look under the manifold and see if I can locate this extra sensor. I do have a etra black plug at the rear of the engine and cannot find where it goes. I was thinking maybe one of the water sensors maybe stuffed. First things first. check manifold sensor.

Is the "auxiliary air control valve" air operated or electric. A hint will be great.

Thanks
Kevin