Am I right in thinking it's the brown thermo time switch down the back of the inlet that activates the cold start valve ?

My newest rs turbo is a bitch to start from cold, cranking over for ages then when it does finally start it runs rough for the first few minutes until it's warmed up slightly then it runs perfect, once I've got it warmed up slightly I can switch it off & she'll fire straight up without any issues so I don't think the cold start valve is doing its job.

Cheers Mark.