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I'm about to drill and tap my plenum to fit an IAC sensor that was liberated from a N13 pulsar - it has '1300' stamped on the hex flats, and PED/71 cast in the grey plastic socket.
Does anyone know off the top of their head what thread it is? It doesn't look like BSP/NPT as I was expecting, more like M14x1.5?

M14 X 1.5 sounds right for IAT. From memory the CLT sensor is M12

yeah m14 x 1.5 rings a bell, i had to go and buy a tap specially for that purpose.

Thanks - of course it was going to be M14, because I don't have that size tap