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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Greetings--well reporting back as promised: Could not see any big issues with pins or ECM, but then that that only means nothing very obvious to me! I cleaned MAP, it was not very dirty in itself but I also pulled out fair bit of gunge from inside the mount/pipe (not the sensor hole I stress)...
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    thats very kind--my timing is off as ever, moved up here 9 years ago--prior to that was just around the corner in Surrey lol ah well :) the thought is much appreciated :) I will try and report back tomorrow thanks again for the time you have so freely given.
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Oh Sorry--did reply early but probably got hidden int he noise of my bleating I live in Colwyn Bay which is in North Wales.
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    thanks--Map Sensor I can certainly manage--that sits within capabilities :) - though it may be tomorrow when i do it--as the rain is coming odwn and it is in the open ;) with regards the EGRs--they were new and whole unit but not wholly sure if they were aftermarket or oem tbh...was done by...
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    thanks again and appreciate oyu pitching this at the level of my knowledge--which is pretty much non existant--since i let my MGB go 30 years or so ago my ability to self mechanic has been limited :) multimeter is a stretch--bur may have one somewhere that I have never used :) can go searching...
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Quick add on ran diagnostics again got P0403-00 UO401-94 Atcm invalid data received from ecm/powertrain, which i assume is special functions being off for fault. EGRs 0/1 both showed 0% and fault would not erase and reset. thanks
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Hi Many thanks for your help so far. so Autel Ap200 arrived this pm. Set it up and went for a look see. just to remind all I am thicker than a whale omlette, so be gentle :) so on start diagnositc it found shed loads of hisotirc and intermittant faults which i cleared, then i ran the engine...
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    Introduction of me

    Thanks the AP is en route, though not sure what the upgraded oil pump is??? Belts were changed 30k ago i think.
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    Introduction of me

    Thanks, though noting it has been making up for it since December!!
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    it does help and is appreciated. is there a specific Autel AP200 I shoudl go for? there seem to be a few
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Thanks again for quick reply. I was starting to think i will have to fork out for a better diagnostic tool--got this one as I thought I might be just a tool to turn off eml... on EGRs I am fairly comfortable that they are in themselves OK--wont be stuck as one fitted december and one fitted 2...
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    thanks for replay--yeah i did see other comments about better readers giving further numbers (concede that on hindsight it was not a smart purchase)--my reader was cheap as chips--only purchased to clear engine warning light as limp had dropped--it only gives p0403--as generic code--sorry if...
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    Disco 3 (LR3) 2008 XS - Limp Mode - P0403 Code--Help Please

    Hi Folks. HELP PLEASE! I Have owned my two owner 2008 Discovery 3 tdv6 xs manual Gearbox for 3 years and generally has been a good solid reliable runner, when it runs I love it--right now not in love!! - 128k on clock FSH new MOT, repairs of late (4 months) I have: 1. New Clutch - corrected...
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    Introduction of me

    Hi Folks, I have a 2008 Disco3 XS which I have owned trouble free for three years and much enjoyed I fond myself here because for last few months trouble free is no longer an apt description. I love the D3 for the space, power and ability to go anywhere--but when it is going wrong--- best 7...
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