Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > Technical (D3)

Go and clean your MAP Sensor NOW!!!
Post Reply  Down to end
Page 45 of 48 <123 ... 4445 464748>
How's your MAP sensor?
EGRs blanked & MAP sensor gunky
12%
 12%  [75]
EGRs not blanked & MAP sensor gunky
60%
 60%  [352]
EGRs blanked & MAP sensor clean
13%
 13%  [80]
EGRs not blanked & MAP sensor clean
12%
 12%  [75]
Total Votes: 582

disco_shantz
 


Member Since: 27 Jul 2018
Location: Greater London
Posts: 2

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3

Hi all, cleaned the MAP this morning. Really easy job, 20 mins max from start to finish. Was covered in crud and gunk! Electrical contact cleaner and kitchen roll restored it perfectly well. Drove the car straight after and felt an immediate difference. Wouldn’t say it was suddenly quicker off the pedal, but the gear change from the auto was definitely smoother and the drive felt “tighter”....not sure how else to describe it. Not sure what else that sensor affects but the car definitely felt better. My EGR is not blanked off, so I guess periodic cleaning will be needed!!
  
Post #199573728th Oct 2018 12:41 pm
View user's profile Send private message View poster's gallery Reply with quote
Glenn of Belgium
 


Member Since: 29 Jul 2013
Location: Zeebrugge
Posts: 108

Belgium 2007 Discovery 3 TDV6 SE Manual Siberian SilverDiscovery 3
MAP causing trottle reaction?

Hello,

situation:
-A few weeks ago i had an "Engine System Fault" (with no power loss or malfunctions whilst driving)
-Cleaned out the butterfly housing
-Cleaned out MAP sensor with brake cleaner and some indirect low air pressure above the sensor, not
direct in sensor
-Fault disappeard Razz

-since a few days now:
-Once in a while pushing the TROTTLE does not respond to the engine in 1ste/2nd gear whilst
accelerating from stop position...
-after some while problem is gone
it's NOT the feeling as if the turbo does not perform, rather like the trottle command is not beeing
confirmed and no extra fuel is injected...
-Rpm's stay very low and no power is generated
-had this with cold + warm engine

ENGINE = MY 2007 TDV6 D3 - 2,7L

Could this be a malfunctioning MAP sensor or maybe still gunk inside the sensor causing this?

Hope to hear some reaction, PM welcome!
  
Post #20065556th Dec 2018 2:24 pm
View user's profile Send private message View poster's gallery Reply with quote
Saiyuki
 


Member Since: 25 Feb 2018
Location: Oxford
Posts: 4

United Kingdom 2009 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3
MAP sensor clean / replace

just to add to this chain.....
I recently had the map sensor replaced by James French (who are AWSOME btw). This is because apparently inserting a Q-tip is bad....who knew !! Rolling with laughter
in replacing the sensor I have discovered something potentially interesting. The 'gunk' in the inlet manifold and blocking the sensor may actually be contributed to by the failing of the sensor itself. From what I can see, learned, discussed, over time the effectiveness of the sensor diminishes (my D3 is 10 years old) and, as a result, the fuel mix ratio goes up, further exacerbating the problem through the unburned fuel that coats the inside of the inlet manifold through the exhaust recycling system. Having replaced the sensor I have a MUCH smoother engine with much more torque at lower revs and a much better improved fuel economy, currently showing 32MPG vs 25-6 MPG before. Im going to put half of that down to the desire to see how high I can get it but even so, its a lot better.
food for thought.
  
Post #200831912th Dec 2018 8:03 am
View user's profile Send private message View poster's gallery Reply with quote
Glenn of Belgium
 


Member Since: 29 Jul 2013
Location: Zeebrugge
Posts: 108

Belgium 2007 Discovery 3 TDV6 SE Manual Siberian SilverDiscovery 3

I've replaced the MAP sensor with a new one to be shure...

Seems the new editions have indeed a bigger whole.

After a few weeks now, SAME PROBLEM! = SOMETIMES no power with pedal on the floor, no revs are coming up, no smoke ... as if the pedal does not give signal to fuel pump...

Ideas please?
  
Post #201712110th Jan 2019 11:31 am
View user's profile Send private message View poster's gallery Reply with quote
gearmuncher
 


Member Since: 30 Oct 2018
Location: Woodley
Posts: 143

United Kingdom 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

you need to start a new thread on that power problem !
  
Post #203237627th Feb 2019 12:43 pm
View user's profile Send private message View poster's gallery Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4
HELP

Just cleaned MAP sensor which was incredibly dirty now got miriad of dash lights and faults including engine light warning /HDC/GEARBOX FAULT/ETc the lot in fact what have i done????
  
Post #204072527th Mar 2019 12:40 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
DIY Ace
 


Member Since: 06 Feb 2019
Location: Hampshire
Posts: 853

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

I doubt that cleaning the sensor will have caused any physical damage to those bits so I guess you have an electrical issue, or have damaged the sensor somehow.

Do you have fault codes?
 2022 BMW i4 M50. Bought Oct 2022. 10,200 miles and counting...
2014 BMW 435d convertible. Bought July 2021. 58,000 miles and counting...
2005 Discovery 3 HSE Auto. Bought Feb 2019. 169,000 miles and counting...
2009 Freelander 2 XS Manual. Bought Sep 2013. SOLD Aug 2021 (already regretted!)

https://youtube.com/channel/UCO_u_0D45x9KGfiNstzLJnw 
 
Post #204073727th Mar 2019 1:04 pm
View user's profile Send private message View poster's gallery Reply with quote
adam
 


Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917

United Kingdom 
Re: HELP

Gazellio @ Prestige Cars wrote:
Just cleaned MAP sensor which was incredibly dirty now got miriad of dash lights and faults including engine light warning /HDC/GEARBOX FAULT/ETc the lot in fact what have i done????


Assume you didn't stick anything into the small hole on the sensor?
 Now Golf GTI PP, 7 speed DSG.
Ex D3 and D4 
 
Post #204073827th Mar 2019 1:10 pm
View user's profile Send private message View poster's gallery Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4

No just cleaned the crud very well and replaced then bingo Xmas tree every fault in the book gearbox UDC engine suspension all the lot before I cleaned it zero faults for a year!
  
Post #204074527th Mar 2019 1:28 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4

Just noticed this from exhaust...



  
Post #204074927th Mar 2019 1:34 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

I had this on my D3 once when i cleaned it, the sensor had to be replaced.
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #204075527th Mar 2019 1:47 pm
View user's profile Send private message View poster's gallery Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4

"Assume you didn't stick anything into the small hole on the sensor?"

Yes I cleaned the hole in the center of sensor with a cotton bud and claened it very well right down to the silver metal contact.... Sad
  
Post #204076227th Mar 2019 2:05 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4

Just off to get new sensor.... Rolling with laughter
  
Post #204076327th Mar 2019 2:05 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Gazellio
 


Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130

United Kingdom 2009 Discovery 4 TDV6 SE Auto Indus SilverDiscovery 4

Beretta wrote:
I had this on my D3 once when i cleaned it, the sensor had to be replaced.


Did you get the mass of warning lights and faults with everything?
  
Post #204076427th Mar 2019 2:06 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Gazellio @ Prestige Cars wrote:
"Assume you didn't stick anything into the small hole on the sensor?"

Yes I cleaned the hole in the center of sensor with a cotton bud and claened it very well right down to the silver metal contact.... Sad


That's the issue i think, if you stick anything in the hole it breaks it Big Cry

When I cleaned mine, I wasnt as delicate as I should have been and it caused all the errors you have had. But be sure is making a good connection, as from memory you get the same errors when its disconnected
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #204076627th Mar 2019 2:14 pm
View user's profile Send private message View poster's gallery Reply with quote
Display posts from the last:  
Post Reply Back to top
Page 45 of 48 <123 ... 4445 464748>
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



DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site