...after cleaning it.
I've been having a problem where the cooling fan light, and the spanner light comes on. When it does this the engine sounds somewhat harsh, and at idle hunts badly between 100-1000 rpm (like, vroooom...vrooom...vrooom, constant revving sort of thing)
To replicate this problem, all you have to do is unplug the wiring loom that has the boost sensor & oil temp sensor on it (unplug the entire loom) and try to start it...it will do the same.
I have cleaned up the boost sensor, which was very mucky. However the problem has just started again.
What I want to know is, what else is run from that loom, as obviously it is something on there.