I'm changing from a zetec engine to a zetec/st170 engine and this has a different cam sensor plug to the blacktop. I've sourced another plug to suit the sensor but not sure what the polarity should be for the plug wiring.

Currently as you look at the plug for the blacktop from the wiring side the earth is on the left and the signal is on the right. Is it the same on the ST170 plug? Looked everywhere but can't find the answer.