Alfa 159, Brera & 946 Spider
Hi, this is my first Alfa, it's a 2007 159 2.4 jDTM. Lately, when the engine warms up, instead of idling at 750 rpm, it drops to around 500 and revs itself. It doesn't stall however. Any ideas?, I'm not a mechanic, but an experienced DIYer, so try and keep it simply - Cheers :p