Hi, Scotty. I have a 2004 VW golf mk5 1.4 petrol. I have a problem with it only when starting with cold engine (after sitting for some hours) and if there are more than 60 degrees F outside, it will idle at 1200 rpm for about 2-3 minutes at startup, then idle goes low at normal rpm as the engine heats up. Computer diagnostics show no faults, what do you suggest? Thanks !