UK Car Repair Questions? Ask a Mechanic for Answers ASAP
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Have you checked the engine coolant temp sensor signal at all to see if this signal is reading properly when cold?
Let me know so we can continue from here.
Usually this is checked with a scan tool that can plug in and communicate with the engine computer and that can read the engine data list to see what the engine coolant temp sensor signal reads.It can also in some cases be tested with a multi meter testing its resistance.If you have a multi meter to test this sensors signal let me know and I can see what I can find on this here.
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