Home > Td5 > Defender TD5 flat spot woes and power loss! Please help!! |
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barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1430 |
Unfortunately sometimes they fail straight out the box I would take it back and swop it for another first.
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14th Apr 2013 11:34am |
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K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610 |
^^^^
As your symptom actually worsened with the MAF sensor swap out I would agree totally. Do you know anyone else locally with a TD5 that you can do a 'diagnostic' swap with the two sensors you have or 'borrow' theirs to fit to yours perhaps? 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!! |
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14th Apr 2013 11:38am |
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Alastaird Member Since: 13 Apr 2013 Location: London Posts: 3 |
ok thanks for your quick responses!
Will email the company tomorrow. it was from Island 4x4 so will have to speak to them Assuming the MAF is fine what else could it be? It's been suggested blocked air hoses ect? So frustrating! |
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14th Apr 2013 12:08pm |
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TR51 Member Since: 17 Apr 2012 Location: Dorset UK Posts: 333 |
I would get a replacement MAF sensor first to sort the main issue.
Then if your still not sorted I would look at: - changing air hoses (at higher speeds if the TD5 hoses have delaminated they can collapse, so take off to see if delamination has occured) - cleaning the MAP sensor http://www.landyzone.co.uk/lz/f67/removing...98286.html - stuck waste gate actuator (like hitting a power wall, for me at about 60, with no acceleration possible on any incline) http://www.youtube.com/watch?v=FyZ4zXPZOf8 |
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14th Apr 2013 4:05pm |
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barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1430 |
Is your landy standard? If it has been hoped up with a larger intercooler and running more boost sometimes a standard maf cannot cope with the amount of air flow |
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14th Apr 2013 6:18pm |
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Alastaird Member Since: 13 Apr 2013 Location: London Posts: 3 |
No completely standard... I've removed EGR that's it.
So took to local garage who cleared all fault codes with new MAF. Car starts and runs fine BUT absolutely no low end grunt. Once turbo kicks in its absolutely great. Is there any way of making the turbo kick in any earlier? (garage tested the MAF and said it was fine... Is there a way of adjusting waste gate actuator arm length for example (worried to touch it ) Thanks for any help! |
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15th Apr 2013 6:06pm |
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diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6105 |
You can adjust the waste gate actuator arm (shorten it to give more boost) but without a "boost box" to mask the extra pressure from the ECU, you'll just go straight into limp home mode. plus without any extra fuelling you'll get no more power anyway.
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15th Apr 2013 6:49pm |
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Pam W Member Since: 25 Oct 2011 Location: North Yorkshire Posts: 1169 |
Also may be worth checking / cleaning the fuel filter. My Td5 was really sluggish on acceleration, especially 40-60, and sorting the fuel filter helped a lot - drove like a different vehicle. Our blog - http://landytravels.com/
Yorkshire Off Road Club - http://www.yorkshireoffroadclub.net |
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15th Apr 2013 9:30pm |
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bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232 |
I have hadthese airflow meters in the past and for some reason as said have failed straight out of the box, i know it states OEM but i do have my suspections as to if its EXACTLEY the same as OEM or just made at the same factory?
http://www.island-4x4.co.uk/flow-sensor-mhk100620g-p-3943.html As diesel-jim stated you could also have a sticking turbo wastegate so thats worth a checkafter the maf is verifyed. You can measure the output from the maf with a multi meter as a simple testif you can get hold of one? 2Vout from the miiddle pin with the engine running and while it still connected to the car is 60kg/hrof air which is perfection, much less than 1.7V and its about dead. Pete |
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15th Apr 2013 9:41pm |
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adafish Member Since: 30 Mar 2009 Location: atherstone Posts: 1385 |
here ya go Alistair..... Putting Dreams on Drives at JLR Solihull..
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15th Apr 2013 9:45pm |
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landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5741 |
I'm in Herts and got a MAF if you can get here for a test? But personally just send it back as faulty. Other faults won't be altered by unplugging/plugging the MAF, so will be MAF issue.
I use uprated MAF's from alive tuning. Last much longer. Andy |
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16th Apr 2013 6:35am |
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Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897 |
I've had the same problem for several years.
Sometimes, when I start it and drive off, there is no power for several seconds, then it suddenly hits you in the back and zooms away. Most times it's perfectly OK. It doesn't make any difference whether the engine's hot or cold. I've just learned to live with it. |
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16th Apr 2013 9:53am |
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robk Member Since: 30 Dec 2015 Location: Zeist Posts: 12 |
After reading this interesting thread, i concluded I have exactly the same problem.
I am curious how this problem eventually was resolved? KR Rob |
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30th Dec 2015 9:57pm |
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excossack Member Since: 22 Feb 2012 Location: North West Posts: 5865 |
I too have a similar issue (1999 td5/10p engine). Just as a matter of interest, when you press the throttle pedal, how far do you press it before you notice revs picking up? 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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31st Dec 2015 8:42am |
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