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pesto_trader

Member Since: 26 Jun 2013
Location: Oslo
Posts: 148

Remapping td5. Need more air.

I tried remapping my Defender 90 td5 04/05 a couple of months ago. Was very happy for a while. Then remapper from Bell Auto Services made me aware of black smoke. We took off the centre part of the snorkel, but nothing changed. He checked the air flow meter, which was fine. I think he used a nanocom or something. And it says its peeking at 500. He said 600 is where you want to be. Any thoughts on this issue? Is the snorkel the problem? It was such fun driving a slightly faster and stronger Defender.

Thanks guys. Peter

26th Aug 2013 9:24pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6090

You can try removig the centrifugal fan thing that's inside the air box (it's on this forum somewhere), where the main intake pipe goes into the airbox, it's clipped in there.

Once you pull it out you'll need to seal up the small holes that are left (From the clips). Doing this made a little bit of difference on my 110.

27th Aug 2013 6:55am

Postmanpat

Member Since: 01 Aug 2012
Location: Co.Limerick
Posts: 50

would bypass the snorkel and see , its know that with a snorkeler you off-set some of the improvements ... Postmanpat

28th Aug 2013 10:02am

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5663

2006 Defender 110 Td5 USW Zermatt Silver

Do test with the top off the air box, this will tell you if it is worth messing about with the intake system.

Andy

28th Aug 2013 11:07am

Will.I.AM

Member Since: 16 May 2013
Location: Hertfordshire
Posts: 411

2005 Defender 130 Td5 HCPU Kaikoura Stone

try a induction kit like mine, it makes the biggest difference ever! i will put a picture into my profile now.[/img]

28th Aug 2013 12:19pm

bell-auto-services

Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2232

2013 Defender 110 Puma 2.2 USW Orkney Grey

Slightly low boost pressure can also keep the maff reading down!

30th Aug 2013 3:40pm

pesto_trader

Member Since: 26 Jun 2013
Location: Oslo
Posts: 148

Thanks guys! Hope i can fix this myself.

9th Oct 2013 9:31pm

austinhealey55

Member Since: 09 Sep 2013
Location: Lusaka, Zambia
Posts: 24

Does your Td5 have a catalytic converter? If so, it could be the issue of low MAF and turbo values, especially if you've done all the checks on the intake (cleaned intercooler, checked intake hoses, removed or checked EGR, new air filter, checked intake for blockages before air filter, have a known working MAF installed, etc.). Not all Td5s had cats though.

My '03 Td5 cat was totally blocked... and if the air can't get out, it can't get in either. I had low MAF values and lack of turbo pressure, and fixing this restored things to normal. You can check if yours has a cat by looking just aft of the front wheel, passenger side (on RHD). Yellow arrow points to it in the photo. Not a bad job to check/clean or replace it, can post more info about doing so if it'll help.

Cat as installed:

Click image to enlarge

Downpipe w/ cat:

Click image to enlarge

21st Oct 2013 8:16am

derbywill

Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 556

out of intrest did you ever sort this?
Will 2005 90 XS
1954 86'' Series 1 tilt
1968 88” 2A 200tdi
2002 110 Hardtop

30th Dec 2013 7:00pm

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