Hi, i recently bought a used grande punto 06 and when i make a big travel like 50kms or more sometimes the temp gauge simply dies and comes back after 10 seconds or so, and the check engine light comes on, im wondering if its the temp sensor or its something related to fuses etc... because its only on large travels and when it dies i can feel a power loss on the front beams at night, but its only for 1 second, tnx for any help! (my eng is not the best!)