Has anyone changed the ambient temperature sensor on their vehicle? My Tipo one was reading "--" so picked up a new sensor off eBay and spliced it in, it now works but is over 30c above actual temperature. Contacted seller who sent a replacement but that does the same. Wondering if anyone has experienced similar or know of a way to recalibrate this? Could it simply be the wrong sensor? Would there be any tests I could perform on it ? Thanks in hope!