Hi,
'For a few weeks now, I've been having a problem with my Golf (year 2000) with an 85KW PD-TDI engine and approximately 90,000 km. After a warm start, the idle speed increases to 1400-2000 RPM (of course, without me pressing the accelerator pedal

). This process lasts for about 5-30 seconds. Afterwards, everything returns to normal... The 2000 RPM has only occurred once, but 1400 RPM is a regular occurrence. This wasn't happening before. Do you have any experience that could help me?'
Best regards,