High/low Engine Revs after startup

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ChrisBurn98
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Posts: 1
Joined: Fri Mar 06, 2020 8:41 pm
Drives: MK4 2008 1.2l Petrol 5 door
Location: Hexham

High/low Engine Revs after startup

Post by ChrisBurn98 »

Right, I have a mk 4 polo 2008 1.2l petrol VW polo. Sometimes when I start the engine the engine Revs surge to around 1800 for 2 seconds or so before settling to normal idle speed and sometimes when I start the engine it seems as if the engine is struggling to start as the revs sit at around 800 or so for a moment while spluttering then eventually make it up to idle speed after 2 seconds or so. Is this behaviour normal? And if not, what could the problem be? My engine has never failed to start in the 8 months I've had the car but couldn't fail to notice this behaviour I've never come across before.

It's my first post here and notice the forum is called MK4 Polo years 1994-1999. Last time I checked Mk 4 polos were 2002-2009. So apologies if I'm in the wrong forum :)
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