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ian3583



Member Since: 19 Apr 2010
Location: Belfast
Posts: 16
United Kingdom 
Puma fault codes - poor MPG
My 2008 110 has thrown up the following fault codes. The discriptions are for Ford codes which I believe are the correct ones to use.

My question is would any of these result in a roughness in the engine, particularly round 1800 rpm, and very poor fuel consumption?

P0100 Mass or Volume Air Flow "A" Circuit
P0404 Exhaust Gas Recirculation "A" Control Circuit Range/Performance
P0606 Control Module Processor
P068A ECM/PCM Power Relay De-Energized - Too Early
P1402 Exhaust Gas Recirculation Metering Orifice Restricted
Post #55276 27th Jan 2011 10:40am
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2232
United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
P1402 would possibily yes,
Post #55332 27th Jan 2011 3:53pm
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ian3583



Member Since: 19 Apr 2010
Location: Belfast
Posts: 16
United Kingdom 
Cheers. I've been talking to R Dover who had a similar problem after his remap and seems like there may be an AFM problem on his. I think he's been talking to you about this. Like his, the rough running seemed to be worse with the modded file installed and not just so bad with the standard map so I'm wondering if I have an AFM problem too. Having said that the poor mpg only started after I re-installed the stabdard map!
Post #55352 27th Jan 2011 4:52pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
EGR Valves are notorious for failing and there are several threads on the issue and numerous people (myself included) that have had to have them swapped out under warranty! As a 'layman' and the fact that three of your fault codes pertain to this historically faulty item could it be yours is stuck? I would suggest a diagnosis (which you obviously have either had done or are capable of doing yourself as you have the codes) and a 'swap out' under warranty or removal of the offending item and a thorough clean in brake cleaner yourself (if not under warranty) to see if you can whittle the codes away! If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #55431 27th Jan 2011 10:35pm
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ian3583



Member Since: 19 Apr 2010
Location: Belfast
Posts: 16
United Kingdom 
That's what I wanted to hear! The Defender is under warranty but the dealer is incompetent so I wanted confirmation before going in and demanding staff dismissals!
Post #55458 28th Jan 2011 8:53am
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mse



Member Since: 06 Apr 2008
Location: UK
Posts: 5045
United Kingdom 2016 Defender 110 Puma 2.2 XS CSW Scotia Grey
The EGR fault - If not cleared - will throw up a range of other faults and they seem to then screw up running and mpg.

My EGR valve works - but every so often it seems to want to stick open or stick closed. Mike
Post #55460 28th Jan 2011 9:21am
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