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Blitzer



Member Since: 12 Feb 2012
Location: N. Ireland
Posts: 122

MAF sensor replaced

I had been having low rpm poor performance issues on my Freelander 2 76k miles. smoke from exhaust. At the weekend it became a lot worse.

After some checks it turned out that the issue was no longer there if I disconnected the MAF sensor, except the engine warning light comes on, so I purchased a new one and just fitted this evening.

Problem: the engine warning light stays on.

Is this pointing to another problem - vehicle seems fine, or is there a means of resetting the warning light.

Post #181471 23rd Apr 2013 6:36 pm
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Blitzer



Member Since: 12 Feb 2012
Location: N. Ireland
Posts: 122

Doh .... Wife drove the car around the block, said fault was still thereI had only checked it was revving ok.

So I took it for a drive.

Engine warning light is now off, and the problem is still there.

Poor performance and hesitance at low revs - around 1600-2000
Black smoke when accelerating

Strange as it was working fairly normal with the OLD maf sensor disconnected

The part is genuine new from local LR dealer.

Any help guys

Post #181479 23rd Apr 2013 8:21 pm
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Badger1970



Member Since: 21 Sep 2012
Location: Southam, Warwickshire
Posts: 1372

United Kingdom 2013 Freelander 2 SD4 HSE Lux Auto Baltic Blue

Book it in and get it properly diagnosed...could be one of a hundred permatations otherwise! Foraging near Gaydon....
覧覧覧覧覧覧覧
MY13 HSE Lux SD4, Baltic Blue - current, 30,000> miles without fault
MY12 HSE 2.2 SD4, Sumatra Black - gone after 10 months/43,000 fault-free miles


Last edited by Badger1970 on 24th Apr 2013 1:02 pm. Edited 1 time in total

Post #181480 23rd Apr 2013 8:23 pm
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JST



Member Since: 01 Nov 2011
Location: Lizant
Posts: 1098

France 2007 Freelander 2 TD4 HSE Manual Narvik Black

Badger is right. However, I would have a fiver on a dodgy/gummed up EGR valve. John
07 HSE Narvick Black
Land Rover Series One
Triumph Rocket 111 (sadly gone!)

Post #181535 24th Apr 2013 11:42 am
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chrisdeeming



Member Since: 29 Dec 2011
Location: Sutton Coldfield
Posts: 828

2007 Freelander 2 TD4 SE Manual Santorini Black

egr! When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car

Post #181545 24th Apr 2013 4:27 pm
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oldgeezer



Member Since: 09 Apr 2011
Location: Wiltshire
Posts: 1302

United Kingdom 2013 Freelander 2 TD4 GS Manual Baltic Blue

when you fit a new air mass it has to be configured to the car ! disconnecting it will of triggered a fault and stored a code ! not helpful when doing diagnostics.
Most likely EGR valve !

Post #181555 24th Apr 2013 5:35 pm
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michal969



Member Since: 01 Sep 2012
Location: Semily
Posts: 185

Czech Republic 

+1 for EGR

Post #181572 24th Apr 2013 8:06 pm
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Blitzer



Member Since: 12 Feb 2012
Location: N. Ireland
Posts: 122

I checked the manual, no mention of configuration for Mass air flow sensor, reversal of installation.

cheap and nasty diag I have says p100 Mass air flow circuit fault, so i'll get it done properly.

Apparently a common fault is that there is a variable geometic rod on the turbocharger that gets sooted up, and it jams, it also gives the same symptoms as I am having, and is consistent with the problem not apparent when I disconnect the MAF sensor.

The diag wil hopefully pinpoint the fault.

Post #181576 24th Apr 2013 8:26 pm
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Blitzer



Member Since: 12 Feb 2012
Location: N. Ireland
Posts: 122

Eventually managed to get a proper look at the FL, weather was nice, mood was good Smile

I found a split in the hose leading up to the throttle body, it's a short length about 200mm x 55mm bore reinforced. Phoned local dealer, they will only sell an assembly which is around 」75.

I've done a repair on it until I get some new hose, now driving great again.

Post #183227 8th May 2013 10:20 am
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Past master



Member Since: 30 Jun 2010
Location: Isle of Ely
Posts: 2710

United Kingdom 

Try someone like Duckworths - they may sell the part you need.

Post #183338 8th May 2013 7:46 pm
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landy19840



Member Since: 13 Mar 2011
Location: Non
Posts: 1817

Israel 2007 Freelander 2 TD4 SE Manual Zermatt Silver

You variable vanes on the turbo are prob sticking too, this can be cleaned. But the turbo is a pain to get too

Click image to enlarge

Click image to enlarge

Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green

Post #183351 8th May 2013 8:23 pm
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Blitzer



Member Since: 12 Feb 2012
Location: N. Ireland
Posts: 122

I got lazy and forgot to keep souring the replacement hose Embarassed it's started to leak a little again.

Internal Diameter approx. 57mm
Outside Diameter approx. 65mm
Angle approx. 25 degrees
Length approx. 140mm

Would a straight section of silicone polyester reinforced hose do the job

Working pressure 4.33 Bar
Burst Pressure 13 Bar

Post #188710 23rd Jun 2013 9:40 am
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