Not normal dude, pretty sure it means your thermostat is needing replaced http://www.camskill.co.uk/m19b0s1301p4224/Toyota_Starlet_Turbo_%5BEP82_EP91%5D_-_Parts_Spares_Tuning_Servicing_Accessories_-_Thermostat_-_Starlet_Turbo_EP82_EP91_Glanza Easy enough job to do yourself, might as well replace the coolant while your at it if its never been changed as you will lose some when changing the thermostat