XK / XKR ( X150 ) 2006 - 2014

P0101 code, mafs reading correctly.

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Old Apr 19, 2026 | 12:23 PM
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Default P0101 code, mafs reading correctly.

Hi all,

Currently having restricted performance problems on the XKR. Had the MAFS checked over and it’s reading fine but still getting restricted performance and engine management light.

anyone had similar issues?

Cheers
 
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Old Apr 19, 2026 | 03:02 PM
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Originally Posted by Cal_XKR
Hi all,

Currently having restricted performance problems on the XKR. Had the MAFS checked over and it’s reading fine but still getting restricted performance and engine management light.

anyone had similar issues?

Cheers
It could be a dozen different things, Until you read the fault codes, you'll just be working blind.

Richard
 
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Old Apr 19, 2026 | 03:48 PM
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Originally Posted by RichardS
It could be a dozen different things, Until you read the fault codes, you'll just be working blind.

Richard
Hi Richard,

thanks for the message. (New to all of this)

so this is the code P0101 it’s stating a range/performance problem.

i have a sneaky suspicion this is why my car is a bit rough on idle also and sometimes down on power!.

cheers


 
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Old Apr 19, 2026 | 03:52 PM
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I think the XKR has two sensors. Have you checked and cleaned both? Have no more codes appeared once the original code has been deleted?

Richard
 

Last edited by RichardS; Apr 19, 2026 at 03:53 PM.
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