Home > Technical (L405) > Restricted Performance |
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Baltic Blue Member Since: 13 Aug 2015 Location: North Wales Posts: 3764 |
Have you tried cleaning the sensor ??
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20th Jul 2021 8:58pm |
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GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2469 |
Not helping with the problem but your Gap tool needs a setting changed so that it shows all faults. For some reason the tool is supplied without the appropriate setting. |
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20th Jul 2021 9:07pm |
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Dolphinboy Member Since: 07 Dec 2009 Location: Bristol Posts: 3136 |
cracked inlet manifold I reckon. Thats what I had. Always at the same spot on the M4, slight incline and little throttle required - RP!! |
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20th Jul 2021 9:52pm |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
Thanks Mike, let’s give it a go! 2019 Autobiography SDV8 Byron blue/black - current
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21st Jul 2021 2:31am |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
Thanks Graeme, you don’t happen to know which setting by any chance do you? 2019 Autobiography SDV8 Byron blue/black - current 2016 Vogue SE SDV8 Santorini Black/Ivory - sold 2009 RR Sport TDV8 HSE - sold |
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21st Jul 2021 2:33am |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
Thanks DB, if it were this should it have shown on the smoke test? 2019 Autobiography SDV8 Byron blue/black - current 2016 Vogue SE SDV8 Santorini Black/Ivory - sold 2009 RR Sport TDV8 HSE - sold |
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21st Jul 2021 2:34am |
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GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2469 |
Show faults, select advanced then ensure that failed, pending and confirmed are all ticked. |
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21st Jul 2021 2:42am |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
Thanks Graeme 2019 Autobiography SDV8 Byron blue/black - current
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21st Jul 2021 2:44am |
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GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2469 |
It would be the 1st that I've heard of on a L405 for which the 4.4s started with a revised inlet manifold, which may have been introduced on the last of the L322 engines too as those engines had quite a few enhancements starting early calendar year 2012. |
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21st Jul 2021 2:48am |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
So the sensor was cleaned but made no difference. The Land Rover technical bulletin was consulted and it transpires that the fault code is a known issue which is caused by an airflow parameter being exceeded resulting in the issues I was having. Land Rover have a software update which has been applied and the problem seems to be resolved.
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22nd Jul 2021 10:09pm |
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supershuttle Member Since: 20 Mar 2011 Location: Lancashire Posts: 3779 |
I know this is an old thread but today I had exactly the same problem, acceleration up hill then Restricted Performance slowed me down (I wasn't going that fast ). It all cleared when I stopped for lunch!. Is this a software update that can only be done by a main dealer or can I do it myself using IIDTool? Geoff |
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17th Nov 2021 7:36pm |
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madasmad Member Since: 22 Mar 2020 Location: Cheshire Posts: 83 |
I believe it can only be done by either a main dealer or a LR specialist who has access to this software. 2019 Autobiography SDV8 Byron blue/black - current
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17th Nov 2021 7:55pm |
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