Member Since: 05 May 2019
Location: Bridport
Posts: 58
Newbie - buying new Maf sensor - where to buy
Hi, recent owner of disco 4 landmark le 2011 3.0sdv6
Had the dreaded restricted performance light, took to local indie looked at map which was filthy so updated that and off I went, next day same issue, now the garage are super busy hence why they could only have a quick look so I went online and the advice is to check the maf sensor which I did and the nearest one to the front is pretty dirty, also had a look for cracked manafold as did the garage and looks ok on first inspection.
So garage is super busy and to save some pennies and as it’s looking like the likely culprit I’m going to buy a new one.
So can I ask where would be the best place to buy one, do I go oem or would some one like europarts be a good bet? They have some for around £90, does that sound worth while ?
Any advice very welcome please, as it’s horrid to drive now.
11th Aug 2019 12:16 pm
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Any advice for best place to order parts welcome as I’d like to order tomorrow morning , thanks
11th Aug 2019 4:49 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14414
Advanced Factors or speak to Dan at Duckworths. You'll find them both in sponsors links
However, you can swap them around to see if it is defective. I suspect it will end up being the inlet manifold. Get a smoke test done. D4 HSE EU6 (Known as Jeeves)
New Defender L663 110 SE (known as Noddy!) Sold
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
11th Aug 2019 4:53 pm
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Cracking, thanks
11th Aug 2019 4:55 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14414
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
11th Aug 2019 5:01 pm
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Comes on pretty much as soon as you encounter a hill or gradient. As I said local indi rudkins had a quick look and the map sensor was filthy so seemed to logical first and quick fix but unfortunately it wasn’t that altho judging by the state of it is wouldn’t have been long before it did cause an issue.
So after scanning the web another quick fix is the maf sensor. As it’s easy for me to investigate that’s what I did and the one nearest the bonnet has a lot of carbon on it, so I’m guessing that the next quick fix and again if it isn’t it probably will be at some point as I’m told they are supposed to be super clean.
The quick option is to buy some air flow sensor cleaner but from what I’ve read this will probably only last for a small amount of time as the sensor is probably on its way out so I. Thinking let’s bite the bullet and just replace it.
If it’s not that then back to rudkins it goes and they can investigate further.
11th Aug 2019 7:15 pm
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Ha anyone had any luck with cleaning the maf and if so what product did you use?
11th Aug 2019 7:21 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14414
Wasson wrote:
Comes on pretty much as soon as you encounter a hill or gradient.
Sounds like mine. I had restricted performance and AA did code read and cleaned MAF. All good until hit a hill or accelerated then restricted performance again. Turns out it was split manifold, a known issue but I did the same looking at internet and thought it was MAF.D4 HSE EU6 (Known as Jeeves)
New Defender L663 110 SE (known as Noddy!) Sold
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
11th Aug 2019 11:07 pm
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
It’s a gamble getting a new maf but when I took it off it’s definitely dirty so as a first go myself I think i’ll Replace it then the next likely culprit I suspect is a possible cracked manifold.
12th Aug 2019 6:29 am
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1668
I saw an excellent video on PowerfulukLtd on testing and fixing MAF . I recall it involves switching them to see if the problem moves with it. Link below if it helps. Good luck
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Here are some pics of the maf this is the one nearest the front end. To me I’m thinking it should be clean and not covered in carbon?
Could this be the restricted power issue?
Check the manifold and as far as I can see with the naked eye no cracks but a smoke test would be the next step if the above doesn’t work.
12th Aug 2019 9:06 am
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Hi, seen the same video but I don’t have the computer tool for diagnostic altho after buying this I’m thinking of getting one, been in the garage every month for last 3 months and only had it 3 months....I need deeper pockets. Thing is I bought it with full history mostly lr garage and al, the stamps etc. Just unlucky so far I think
12th Aug 2019 9:08 am
philm
Member Since: 02 Oct 2016
Location: Manchester
Posts: 732
Why don't you do what others have said, contact Woody32 and get it checked and fixed instead of throwing parts at it? Will be cheaper in the long run.L633 Defender
Range Rover Velar-gone
Discovery 4 Landmark-gone
Gap IID Tool
12th Aug 2019 9:46 am
Wasson
Member Since: 05 May 2019
Location: Bridport
Posts: 58
Sent a pm to woody - looking at getting it checked out but indi booked up till next week so was hoping I might be able to diagnose and fix myself. Looking at the maf sensor it’s on its last legs anyway so if it’s not an issue now it will be in the future so it wouldn’t be wasted money in the long run
12th Aug 2019 10:02 am
Moo D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14414
Have you tried cleaning it? It doesn't look that bad.D4 HSE EU6 (Known as Jeeves)
New Defender L663 110 SE (known as Noddy!) Sold
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
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