then read the FT from cold in the morning after a night rest without starting the engine only with ignition on, it should be the same with the coolant temp at that point if the sensor is OK and close to the ambient/overall temp(use a laser thermometer on the head for that) if you see what i mean

I will try to do it in the morning might be a bit hard though because I start work at 05:00, also i don't have a laser thermometer. I might not get to it till Saturday. At which point I will be redoing the injector seals and washer again encase I have messed them up some how.