PP2000 fault

[davew]

i've just got myself a PP2000 set up and all is working ok, after setting up some of the bmw software i found this a breeze to install ,anyhow i did a global test and had a few codes stored mostly relating to the outside temp sensor which was duff replaced this and cleared all the codes but one keeps coming back on the instrument cluster it's "coolant temperature inncorrect value received" the engine was cold when test was ran is this why or is it maybe a duff temp sensor, car get's up to temp as it should and gauge inside car reads normal