Found a red 2 pin plug dangling at the back of the engine today (in the corsa)
What is it? can't see the wires as it's encased, a bit like front crank sensor. It's joined into the loom near the plug for the ICV. There is a sensor in the back of the engine, but it already has a plug in it. It may fit to the top of the engine as the wire is about 6" long, but I can't see anything.
I never noticed it when we took out the engine, so I'm sure it has a home.
Anyone got any ideas?