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Davefarmer



Member Since: 29 Dec 2014
Location: Norfolk
Posts: 19
United Kingdom 2007 Defender 90 Puma 2.4 HT Bonatti Grey
Limp mode engine management light
How do folk how are we all?

Possibly asking how long is a piece of string here but worth an ask I thought!

07 2.4 puma defender 90

Had issues with it cutting to half power and the engine management light coming on.

Turn it of for 5mins back to full power but light stays on for few days before putting its self out

Iv replaced the air flow mass meter added a snorkel and this seamed to cure the problem but with in 1000 miles problem is back again

Engine done 102.000 miles but pulles like a train doesn't smoke doesn't miss a beat

Keep it well serviced I think the hand book says 12k mike service but I swap the oil and filters every 6k

Garage have had the diagnostic kit on it can't pin it down

Wondering if any one has had similar problems?
Post #383201 29th Dec 2014 9:52pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20359
United Kingdom 
Have you phisically checked the turbo hoses for cracks / splits?
Could also be possible that the EGR is involved or in the process of playing up.
Especially if it's getting stuck open, not had many issues with my own but the EGR was a royal pain.
Post #383204 29th Dec 2014 9:57pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686
If the EGR has not been disabled by remap or bypassed remove the MAP sensor and give it a clean with Carb cleaner. Is the EGR completing its cleaning cycle at shut down?


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Post #383218 29th Dec 2014 10:11pm
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Davefarmer



Member Since: 29 Dec 2014
Location: Norfolk
Posts: 19
United Kingdom 2007 Defender 90 Puma 2.4 HT Bonatti Grey
Thanks guys very help full

Iv not checked the turbo hoses will do

As far as I know EGR is all original

I will check it out see what it's up to

Can't say iv noticed much in the way of noise after shut down

With all the EGR posts that are on here I may well bypass it.
Post #383225 29th Dec 2014 10:23pm
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Davefarmer



Member Since: 29 Dec 2014
Location: Norfolk
Posts: 19
United Kingdom 2007 Defender 90 Puma 2.4 HT Bonatti Grey
Just watched video on you tube of EGR valve shut down glad to say mine sounds very similar

I wasn't aware that noise was the EGR valve

Sounded to me bit like fan belt slip and never thought much more about it
Post #383241 29th Dec 2014 10:45pm
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