I’ve had my 2008 V8V 6spd Roadster for two yrs now and have had a recurring problem where the engine cooling fan stays on and the EVAP valve “clicks” for an inordinate time after turning car off. The ck engine light flickers when car is off, but not when ignition is on. Any others seen this? One mechanic indicated relays in fuse box looked somewhat corroded, but after cleaning problem persists.