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DISCO3.CO.UK > Technical (D4)

MAP Sensor Error
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4
MAP Sensor Error

Did an oil change today. Whilst draining thought I'd clean the MAF sensor. Wish I hadn't, cos I've got a warning for restricted performance now!

Errors below:

Click image to enlarge


Any got any ideas please? 

Last edited by TheGreenMachine on 18th Nov 2024 11:25 am. Edited 1 time in total 
Post #238174416th Nov 2024 2:21 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

you sure you reconnected it properly ?

what you cleaned it with ?

besides you getting MAP error code... you sure you have not damageds some wiring while removing oil filter or somethig?

Greg  
Post #238174516th Nov 2024 2:42 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Double checked that I reconnected correctly.

Just wiped with kitchen roll. Looked clean and no bits of paper.

No wires in the way for oil change, so highly unlikely.  
Post #238174616th Nov 2024 3:06 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

just long shot  
Post #238174816th Nov 2024 3:33 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Appreciate it, mate. Got yo start with thr easy stuff. Looks like a new sensor will fix it  
Post #238175016th Nov 2024 4:01 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

tried moving connectors between A and B sensor to verify if thats sensor not the harness issues which travells along ?

if you cleaned the MAF what if you did not sealed the piping well and you got leak which springs the fault as manual suggests as well?

another shorter shot in da dark lol

G  
Post #238175516th Nov 2024 4:50 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

I thought that the o ring might be shot? Maybe I'll put a bit of thick grease on it to help seal.

It's on nice and tight, although, as the screw holding it on goes in to plastic I don't want to over tighten and knacker the thread.

Wouldn't there be smoke leaking if it wasn't sealed?

Will try change the sensors round, too.  
Post #238176416th Nov 2024 6:26 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

good luck with it

i cleaned MAFs not so long ago but had no issues at all

also cleaned MAP never seen any perf degradation

G  
Post #238176516th Nov 2024 6:41 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Cheers.

I think I've sussed it.

Looks like the screw which holds it in was over tightened, now it won't go tight enough to hold it down.

Loads of plastic thread loose in the hole when I looked.

Need to figure out a way of filling the screw hole with some plastic or similar so I can re thread the hole.

Strangely, despite the warning, it dies not seem to affect the performance.  
Post #238176816th Nov 2024 7:03 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

but measurement which is out of range for sensor it is perf issue Wink

good one cheap almost fix

G  
Post #238179017th Nov 2024 9:46 am
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Fixed with the bottom of a rawl plug to fix the thread issue but it also required a new sensor.  
Post #238180417th Nov 2024 2:56 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

No longer fixed, but seems to occur when at speed now. Also seems to actually be restricted now. Turbo not kicking in.  
Post #238184718th Nov 2024 10:54 am
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

life  
Post #238185018th Nov 2024 1:18 pm
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TheGreenMachine
 


Member Since: 05 Nov 2023
Location: North Lincolnshire
Posts: 75

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Landrover life  
Post #238185518th Nov 2024 2:13 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6415

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

i know some mechanics and let me tell you Audis Beemas Mercs AND volkwagen not too mention some "japs" fail even more often

I am on second D3/4 and never dealt with much of the failures apart from ones i did as preemptive strike Wink

G  
Post #238185718th Nov 2024 2:24 pm
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