Hello, when I start my car I have a high idle speed of about 2000RPM for about 20 seconds until it comes down to about 800RPM. Unfortunatly there is no difference, when when the engine is warm or hot. I measured the thermistor - about 1-2kOhm in warm condition - s 1o the thermistor is doing fine. All connections are ok. Any ideas ? Thanks Arne VIN4949 Beta LAYOUT GmbH Feldstrasse 2 65326 Aarbergen Tel.: 0049 6120 907010 Fax.: 0049 6120 907014 http://www.pcb-pool.com http://www.schablone.de arne.hofmann@xxxx