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diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

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?

1st Jun 2017 12:51pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

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.

1st Jun 2017 12:58pm

huffhuff

Member Since: 05 May 2016
Location: Home Counties
Posts: 379

When I was looking, the cheapest genuine MAF I found was island4x4 TD5 Defender 90
Discovery 3 HSE

1st Jun 2017 1:51pm

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

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

1st Jun 2017 2:04pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20357

Bosch is Genuine. 99.9% sure on that, the same goes for the MAP. You may as well sort both out. 👍🏻 $W33T $0U7H3RN $UG4R
ðŸ‡¬ðŸ‡§ðŸ´ó §ó ¢ó ¥ó ®ó §ó ¿ðŸ´ó §ó ¢ó ·ó ¬ó ³ó ¿ðŸ´ó §ó ¢ó ³ó £ó ´ó ¿ðŸ‡®ðŸ‡ªðŸ‡ºðŸ‡¸â›½ï¸ðŸ›¢ï¸âš™ï¸ðŸ§°ðŸ’ª

1st Jun 2017 2:04pm

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

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

1st Jun 2017 2:05pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20357

*EDITED* Martin is correct ref TD5.
I was thinking Puma. $W33T $0U7H3RN $UG4R
ðŸ‡¬ðŸ‡§ðŸ´ó §ó ¢ó ¥ó ®ó §ó ¿ðŸ´ó §ó ¢ó ·ó ¬ó ³ó ¿ðŸ´ó §ó ¢ó ³ó £ó ´ó ¿ðŸ‡®ðŸ‡ªðŸ‡ºðŸ‡¸â›½ï¸ðŸ›¢ï¸âš™ï¸ðŸ§°ðŸ’ª

1st Jun 2017 2:06pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

Yep, VDO is genuine on TD5 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

1st Jun 2017 2:50pm

huffhuff

Member Since: 05 May 2016
Location: Home Counties
Posts: 379

MAF - VDO
MAP - Bosch TD5 Defender 90
Discovery 3 HSE

1st Jun 2017 3:19pm

derbywill

Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 557

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
1968 88â€ 2A 200tdi
2002 110 Hardtop

2nd Jun 2017 11:27am

bankz5152

Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2166

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.

2nd Jun 2017 12:35pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

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.

29th Jun 2017 6:21pm

Rusty380

Member Since: 20 Jun 2017
Location: Nottingham
Posts: 81

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

30th Jun 2017 6:53am

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

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.

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)

3rd Jul 2017 7:07pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

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.

4th Jul 2017 9:05pm

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