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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6031
United Kingdom 2006 Defender 110 Td5 SW Epsom Green
MAF? Best ones?
My MAF is on its way out.... 110 has been sluggish for a while from pulling away and putting your foot down; once on boost it flies.

just unplugged the MAF and bam! away she goes much better.

I've got an IRB 190bhp tune, VGT turbo, boost box (and snorkel), any good recommendations for a decent aftermarket MAF? or just go genuine?
Post #628185 1st Jun 2017 1:51pm
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ian series 1



Member Since: 17 Nov 2014
Location: south
Posts: 3127
United Kingdom 2008 Defender 90 Puma 2.4 CSW Bonatti Grey
Genuine, Bosh or Hella in that order.

There are a lot of cheap aftermarket ones about (like everything else)
And they can be hit and miss. 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.
Post #628188 1st Jun 2017 1:58pm
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huffhuff



Member Since: 05 May 2016
Location: Home Counties
Posts: 379
United Kingdom 2001 Defender 90 Td5 HT Java Black
When I was looking, the cheapest genuine MAF I found was island4x4 TD5 Defender 90
Discovery 3 HSE
Post #628200 1st Jun 2017 2:51pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6478
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Siemens/VDO is the original supplier of these, innit?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #628205 1st Jun 2017 3:04pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19535
United Kingdom 
Bosch is Genuine. 99.9% sure on that, the same goes for the MAP. You may as well sort both out. 👍🏻 Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #628206 1st Jun 2017 3:04pm
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Martin
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Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6478
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Hmm. Not on a Td5. The genuine one I replaced with a VDO one were absolutely identical.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #628207 1st Jun 2017 3:05pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19535
United Kingdom 
*EDITED* Martin is correct ref TD5.
I was thinking Puma. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #628208 1st Jun 2017 3:06pm
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ian series 1



Member Since: 17 Nov 2014
Location: south
Posts: 3127
United Kingdom 2008 Defender 90 Puma 2.4 CSW Bonatti Grey
Yep, VDO is genuine on TD5 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.
Post #628218 1st Jun 2017 3:50pm
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huffhuff



Member Since: 05 May 2016
Location: Home Counties
Posts: 379
United Kingdom 2001 Defender 90 Td5 HT Java Black
MAF - VDO
MAP - Bosch TD5 Defender 90
Discovery 3 HSE
Post #628224 1st Jun 2017 4:19pm
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derbywill



Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 539
England 2005 Defender 90 Td5 XS CSW Java Black
I have a similar set up to yourself and was thinking when mine goes down i would go down the route and the uprated MAF and MAP sensors, Tuners seem to be using these now instead of the boxes the mask the higher pressures and air flow. But I am not sure if IRB do them. Might be worth asking Ian if he does.

Cheers

Will 2005 90 XS
1954 86'' Series 1 tilt
Post #628429 2nd Jun 2017 12:27pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2065
2004 Defender 110 Td5 DCPU Epsom Green
I assume since you have a boost box youre running around 22 - 24psi boost? At that power level youre going to have MAF issues regardless of brand. For normal driving around town i leave it plugged in, off road or having fun i unplug it.

Afaik there isnt an uprated MAF unit available but there are "tuning boxes" for the MAF which allow you to adjust the reading it sends back to the ECU.
Post #628455 2nd Jun 2017 1:35pm
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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6031
United Kingdom 2006 Defender 110 Td5 SW Epsom Green
Just ordered a new MAF form island4x4 (i've had an account with them for years)

As said above, they were the cheapest.... 71.20 delivered, Cheapest I could find for a genuine VDO on fleabay was about 83 ish.

Thanks again all. Thumbs Up
Post #634469 29th Jun 2017 7:21pm
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Rusty380



Member Since: 20 Jun 2017
Location: Nottingham
Posts: 81
United Kingdom 
Is there no way to completely scrap the MAF on these and run with the MAP sensor, or are the ECU's and any mappers not advanced down that line yet?

I got rid of the MAF on my 99 Mitsubishi Evo and it ran speed density instead on a MAP sensor.

Sorry if there is an obvious reason why not, i'm learning Laughing
Post #634574 30th Jun 2017 7:53am
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039
Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
A td5 runs OK without a MAF
It runs better with a well working MAF and it runs worse with a bad MAF. My experience is that the difference between a bad MAF and No MAF is bigger then the diffeence between No MAF and a Good MAF. Twisted Evil Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #635380 3rd Jul 2017 8:07pm
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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6031
United Kingdom 2006 Defender 110 Td5 SW Epsom Green
I found with the MAF unplugged it smoked a lot, especially off boost.

Fitted the new one today. Just need to take it for a bimble too see how it performs now.
Post #635657 4th Jul 2017 10:05pm
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