I've been having this problem intermittently for the past 7 or 8 months but it's now happening more often.
Normally the van idles at a tough over 900rpm once it's warmed up. I'm having intermittent episodes of the idle speed increasing to just below 1000rpm.
It's always fine when the van's started from cold and it only happens once the engine has been switched off then restarted. It runs at normal idle speed for 30 seconds or so then creeps up to 1000rpm. When I'm driving and pull up to a junction etc it sometimes stays at the higher idle speed but usually it sorts itself out and the idle speed drops back to normal.
I've put my VCDS on it and the only fault it shows is for the oil level sensor. I'm going to replace the sensor next time I change the oil.
The fault was occurring before the sensor showed up the fault so I don't think that's the problem.
I've also had a Pendle remap but the fault was occurring before that as far as I can remember so I don't think that's the cause either.
I'm suspecting the it may be something to do with a temperature sensor playing up but I don't want to start replacing random sensors to try and fix the fault if I can help it. I know that VW had quite a few issues with temperature sensors on their cars a few years back.
Has anyone else had a similar problem and if so, what was the cause?
Normally the van idles at a tough over 900rpm once it's warmed up. I'm having intermittent episodes of the idle speed increasing to just below 1000rpm.
It's always fine when the van's started from cold and it only happens once the engine has been switched off then restarted. It runs at normal idle speed for 30 seconds or so then creeps up to 1000rpm. When I'm driving and pull up to a junction etc it sometimes stays at the higher idle speed but usually it sorts itself out and the idle speed drops back to normal.
I've put my VCDS on it and the only fault it shows is for the oil level sensor. I'm going to replace the sensor next time I change the oil.
The fault was occurring before the sensor showed up the fault so I don't think that's the problem.
I've also had a Pendle remap but the fault was occurring before that as far as I can remember so I don't think that's the cause either.
I'm suspecting the it may be something to do with a temperature sensor playing up but I don't want to start replacing random sensors to try and fix the fault if I can help it. I know that VW had quite a few issues with temperature sensors on their cars a few years back.
Has anyone else had a similar problem and if so, what was the cause?
