↓ Advertise on Defender2 ↓

Home > Maintenance & Modifications > MAF sensors
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443
England 2002 Defender 110 Td5 SW Coniston Green
MAF sensors
I'm just wondering, in a thick kind of way, how do MAF sensors get so fouled up? They're just on the clean side of the air box and there's a sharp bend before the turbo. I've just swopped mine with one I took off 4 years ago declared "dead" when I took it to be remapped, gave it a quick squirt with electric contact cleaner and it's back to running well. Just done the pick up from school and recently I've been down on power, this time 5th gear all the way, down to 30mph on the hills and still pulling, not a chance before. So what is it that fouls them up?
Post #276069 23rd Oct 2013 4:21pm
View user's profile Send private message View poster's gallery Reply with quote
custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20643
United Kingdom 
Air contaminants, fine particles that manage to still get through the air filter. What ever filter you have some dust and particles will get through especially microscopic. TheThunder RollsπŸ‡¬πŸ‡§πŸ‡ΊπŸ‡Έ
β›½οΈπŸ›’οΈβš™οΈπŸ§°πŸ’ͺ
Post #276081 23rd Oct 2013 5:08pm
View user's profile Send private message View poster's gallery Reply with quote
JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443
England 2002 Defender 110 Td5 SW Coniston Green
Makes you think though, I generally use Bearmach's finest filters(deal on at the time and bought a job lot) and can see a drop off in performance after about a month though saying that it might go a bit further this time as I've cured the leaks on the FPR and rear of the rocker cover so if there is any dirty air being drawn in around the airbox and its wonderfull fit it should be cleaner now Whistle
Post #276087 23rd Oct 2013 5:25pm
View user's profile Send private message View poster's gallery Reply with quote
custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20643
United Kingdom 
It's one of the reasons I don't believe in those ram effect so called air intakes, they will be chronic for polluted air coming in. As standard the majority of dust and the like will go by but air won't. Snorkels are a different principle because they are high up well away from and contaminated air. With obvious reason of course. TheThunder RollsπŸ‡¬πŸ‡§πŸ‡ΊπŸ‡Έ
β›½οΈπŸ›’οΈβš™οΈπŸ§°πŸ’ͺ
Post #276100 23rd Oct 2013 6:24pm
View user's profile Send private message View poster's gallery Reply with quote
Splitpin



Member Since: 07 May 2013
Location: Midlands
Posts: 100
United Kingdom 
Running EGR fills them with soot and an oily gunk.
Post #276281 24th Oct 2013 10:58am
View user's profile Send private message View poster's gallery Reply with quote
JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443
England 2002 Defender 110 Td5 SW Coniston Green
That's out as mine is blanked. I'm just enjoing the better performance Thumbs Up
Post #276286 24th Oct 2013 11:25am
View user's profile Send private message View poster's gallery Reply with quote
Splitpin



Member Since: 07 May 2013
Location: Midlands
Posts: 100
United Kingdom 
Sorry I mis read as map sensor anyway!!!

It was early here!
Post #276296 24th Oct 2013 12:03pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2025 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums