Before I kill it with fire...

Quote:

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Originally Posted by Mk1_Oz

That one there possibly points to a heat related issue. Cold first thing in the morning and cools down when left. If so, does this point to a fuelling issue (vapour lock?) or maybe a temp sensor issue? Just spit balling......

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or a CAS fault.

Take it to a dealer or someone with a nanocom to read the faults so that you will know exactly where this problem is coming from.
Otherwise you are just stabbing in the dark.