Hi,
i have a sluggish sporty when cold, so i have been advised by a very kind member (assasin ) that it could be my temperature sender unit, which isnt working properly!!

now please can someone tell me exactly where it is located, as i have been told the part could be one of two types!!!!.
so i need to locate it, to check which one i need..
so a photo would be great!!!!

and any reccomendations where to get one from!.

thanks in advance..