Ign on gauge jumps to 70 even if car not run that day.
If I pull plug from 4 pin sensor in thermostate housing 1.6 BFQ gauge still reeads 70, but fan comes on.
Car was "overheating" it is my daughters, slight leak from therm housing, removed and new O ring fitted.
Thought the W Pump may have gone, as no flow through the Rad. Thermostate removed, cooling better but Temp Gauge all over the place, hope to change sensor tommorow.
Any other advice ?