Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
Performance restriction
Hi I have a discovery 4 2011 plate when a do short journeys and the car is up to temperature I get the restricted performance warning come on.
I have taken to the garage they said it was a air mass flow issue and replaced the faulty one.
Came on the next day went back and they said the error did not come up they suggested the only other issue could be the water In fuel sensor..
Had a issue un related and had to have this sensor replaced but yet again the message popped up today.
Fine all morning longish and short journeys but this afternoon after a 1/2 mile journey came on again.
I would welcome any ideas as I feel I can’t keep taking it to the garage as this is becoming a nightmare.
P.S the performance is never restricted.
Thanks Gary
27th Jul 2020 9:14 pm
davidhem
Member Since: 21 Feb 2013
Location: Kenilworth
Posts: 710
I think you are going to need to post the error codes, It might be worth asking if there is anyone local on here who has an iid tool that can read your codes.
I am in Warwickshire if you ever come up this way, I can read the codes.David
27th Jul 2020 9:27 pm
Gazbaz902
Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
Thanks David there is a friendly garage I maybe able to get the codes.
I will post if I can get them.
27th Jul 2020 9:57 pm
Stevepd
Member Since: 06 Mar 2018
Location: Wiltshire
Posts: 392
Member Since: 12 Jan 2016
Location: Surrey / SW London
Posts: 2138
Are you getting any restricted performance, or does the car drive normally?
Current: D4 HSE
Previous: BMW Z4M Coupe
Previous: Land Rover Defender 90 CSW Td5
Previous: Land Rover Discovery Td5 ES
28th Jul 2020 8:22 am
Gazbaz902
Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
Hi the car drives normally with no issues apart from the light.
Thanks
28th Jul 2020 8:58 am
Gazbaz902
Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
Stevepd wrote:
DPF getting full or end of life?
I guess this would make the light come up all the time mine only happens when car is hot.
28th Jul 2020 9:02 am
teddy
Member Since: 22 Jul 2017
Location: suffolk
Posts: 72
Are all the vacuum pipes connected OK? I had an intermittent restricted performance issue for ages until I found a broken connector on a vacuum pipe. Take oil cap off, lift front of (or remove) engine cover and you will see a vacuum pipe between you and the oil filler. If that connector is loose/broken it will cause the symptoms you have described.2010MY Disco 4 HSE in Ipanema Sand over Almond.
It's got THE rear diff.
28th Jul 2020 2:01 pm
Gazbaz902
Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
Thanks for that I have looked and all the pipes look ok and in good condition.
When I started the engine I Gould not detect any issues.
Thanks for your help.
28th Jul 2020 2:49 pm
Gazbaz902
Member Since: 12 Jul 2017
Location: Somerset
Posts: 21
davidhem wrote:
I think you are going to need to post the error codes, It might be worth asking if there is anyone local on here who has an iid tool that can read your codes.
I am in Warwickshire if you ever come up this way, I can read the codes.
So hear is the thing I have got a code reader and it is showing no codes I will wait till the light comes on again and see what it says then.
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