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pcheaven



Member Since: 19 Jan 2010
Location: Kent
Posts: 1459

United Kingdom 
engine idle speed takes a while to return to normal (750)

when stopped atg a jucntion etc, the idle speed is around 1150, and takes up to 5 seconds to return to around 750.

this also means that I am braking against the engine when slowing down and in gear Sad
not good

anyone have any ideas, before I take to to the Stealer in Lewes? 

Post #71263 29th Jun 2010 8:06 pm
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AndyT



Member Since: 28 Dec 2008
Location: West Yorkshire
Posts: 447

United Kingdom 2007 Freelander 2 TD4 SE Manual Sumatra Black

Mine's been doing the same recently but didn't used to?
Can't explain it. There's probably an ECU firmware revision by now.

Post #71266 29th Jun 2010 8:38 pm
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pcheaven



Member Since: 19 Jan 2010
Location: Kent
Posts: 1459

United Kingdom 
lr lewes no help.....

drove to lr in lewes, they had the car all day - and could not fault it -- bl00dy tw@ts
it 'faulted' as soon as i picked it up

strange cos when the weather was cold it used to under rev, now its warm it over revs 

Post #71557 5th Jul 2010 5:37 pm
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MacWallace



Member Since: 28 Feb 2010
Location: Perthshire
Posts: 148

Scotland 2011 Freelander 2 SD4 XS Auto Zermatt Silver

Sounds to me like a mixture problem! Should be easy to identify!

Post #71562 5th Jul 2010 7:03 pm
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Grumpa 2



Member Since: 02 Jan 2009
Location: Notts..
Posts: 96

England 2009 Freelander 2 TD4 GS Manual Stornoway Grey
Re: engine idle speed takes a while to return to normal (750

pcheaven wrote:
when stopped atg a jucntion etc, the idle speed is around 1150, and takes up to 5 seconds to return to around 750.

this also means that I am braking against the engine when slowing down and in gear Sad
not good

anyone have any ideas, before I take to to the Stealer in Lewes?


Mines always done this but at 1000 rpm not 1500.
Had it checked at two different dealers who both said the same "Nothing wrong, its normal"

Post #71578 5th Jul 2010 10:38 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4642

For those who have the problem with high RPM, a question: do you have a DPF?
Because if you do, then this high RPM (when engine is warm) could be one of the phases of DPF auto cleaning.
Many engine ECUs rise the idle speed when attempting a self clean of the DPF.


Last edited by alex_pescaru on 6th Jul 2010 8:07 am. Edited 3 times in total

Post #71587 6th Jul 2010 8:02 am
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mcphersonstrut



Member Since: 21 Jul 2009
Location: In the land of 2 wheel drive and 60mpg
Posts: 2164

England 2008 Freelander 2 TD4 HSE Auto Stornoway Grey

Mr Grumpa 2 - long time no speak, hope you Mrs G and the family are well Thumbs Up

Post #71588 6th Jul 2010 8:03 am
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jbvox



Member Since: 27 Oct 2008
Location: W Vl
Posts: 57

Belgium 2008 Freelander 2 TD4 S Manual Zermatt Silver

mine is doing the same (pauzes at 1000 rpm before going down @ 750 rpm) and this since the first day. In cold temp it's less than now (warm) and I was told that this is normal... I have NO DPF, and was told that the DPF has nothing to do with this... heard, not official, that it's because they reduced the idle speed as low as possible (less polluting) and going that low directly risks to stop the engine. so, instead the idling down goes in steps... (not a official explanation of a LR technicien, but a guy who knows engines) Fl2 zermattsilver TD4 S man

Post #71599 6th Jul 2010 12:18 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4642

jbvox wrote:
I have NO DPF, and was told that the DPF has nothing to do with this...

If you don't have DPF, indeed, the DPF has nothing to do with this... Laughing Laughing Laughing
But with a DPF, in order to clean it, the EGT (exhaust gases temperature) must be raised up to 650 degrees in order to clean (burn, more likely) the particles inside the DPF.
This is done by modifying the injection process (adding a post injection phase, after the combustion stroke), restricting the air intake (for slower combustion and for a slower speed of the exhaust gases) and, of course, by raising a bit (for efficiency) the idle speed.
So who told you that a DPF regeneration has nothing to do with raised idle speeds, no offence, must read some more... The web is full with explanations of the process.

Post #71602 6th Jul 2010 12:43 pm
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pcheaven



Member Since: 19 Jan 2010
Location: Kent
Posts: 1459

United Kingdom 
hummmmm

alex_pescaru wrote:
For those who have the problem with high RPM, a question: do you have a DPF?
Because if you do, then this high RPM (when engine is warm) could be one of the phases of DPF auto cleaning.
Many engine ECUs rise the idle speed when attempting a self clean of the DPF.


humm,

will check for DPF tonight - who can I tell?

thanks 

Post #71609 6th Jul 2010 2:28 pm
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pcheaven



Member Since: 19 Jan 2010
Location: Kent
Posts: 1459

United Kingdom 

alex_pescaru wrote:
For those who have the problem with high RPM, a question: do you have a DPF?
Because if you do, then this high RPM (when engine is warm) could be one of the phases of DPF auto cleaning.
Many engine ECUs rise the idle speed when attempting a self clean of the DPF.


ok checked my VIN
8th letter is a B so I should not have a DPF..... 

Post #71615 6th Jul 2010 5:42 pm
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ou toppie



Member Since: 18 Mar 2010
Location: cullinan
Posts: 32

South Africa 2007 Freelander 2 TD4 SE Manual Stornoway Grey

Good Evening
My 07 did not do this until it had a software upgrade about a year ago. Now it does it at every junction and robot (sorry -traffic light )
Vehicle was in dealers yesterday for three year service and they still say there is no problem and that the software upgrade is nothing to do with it. So I guess thats it unless you guys come up with something from UK dealers. Sad

Post #71727 8th Jul 2010 4:10 pm
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pixies fella



Member Since: 09 Jul 2010
Location: nottingham
Posts: 2

United Kingdom 

Hi everyone , new to this site so please go easy with me . with response to the idle speed problem , I had the same with my 07 XS. I took it to the dealers after reading on this site about software needing a fix. I quoted this site to the dealers and the fix I had read about and low and behold after putting a software update on to the ECU the problem stopped.It has been fine since (about 5 months).Hope this helps

Post #71784 9th Jul 2010 9:51 pm
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s7gpt



Member Since: 21 May 2010
Location: Leeds
Posts: 315

United Kingdom 2007 Freelander 2 TD4 SE Manual Sumatra Black

pixies fella wrote:
Hi everyone , new to this site so please go easy with me . with response to the idle speed problem , I had the same with my 07 XS. I took it to the dealers after reading on this site about software needing a fix. I quoted this site to the dealers and the fix I had read about and low and behold after putting a software update on to the ECU the problem stopped.It has been fine since (about 5 months).Hope this helps


As mine does it too anychance you could post deatils of the software fix used - ref number or something so i can ask the dealers for the same Question freelander 2 SE black and beige - now sold

Post #71933 12th Jul 2010 8:25 pm
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pixies fella



Member Since: 09 Jul 2010
Location: nottingham
Posts: 2

United Kingdom 

I will try and find out for you. When the fix was done they told me there were some errors also on the ecu but they didn't give me a print out of them. They should have a record of this I would have thought as it was warranty work so i will speak to them and try to get some info for you.

Post #71937 12th Jul 2010 9:14 pm
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