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Ford Escort Lambda wiring - Mookfish
Ford Escort 1.6 CL 1998

The plug for the lambda sensor came unclipped and melted on the exhaust manifold, unfortunately the plug was too badly melted to figure out which way it goes together so I don't know where the wires go.

The new sensor has 2 white 1 black and 1 gray wire, same as the old one, but the cars wiring loom is

white
brown
black/yellow
purple/yellow

Does anyone know what connects to where?

Thanks in advance.
Ford Escort Lambda wiring - MerlinTec
See if I remember this right
The 2 white are the heater wires, black is the sensor wire and grey is the earth.
So white to black
Brown to grey
Black/yellow, purple/yellow to the two white wires.
If you have a volt meter just double check you should have 5 volts on the white wire and 12volts on black/yellow or purple/yellow
Hope this helps
Ford Escort Lambda wiring - Mookfish
Thanks for that, all done now. Important part of fitting was to remove the horrible crimp connectors and get the soldering iron, I had zero confidence in those and didn't want the lambda to come disconnected and need replacing again.