View Full Version : Lambda sensor
matty h
29-06-10, 07:25 PM
I have a 3 wire Bosch Lambda sensor please can someone tell me what each wire is for.I have two brown wires and a purple wire.
Thanks Matty
The 2 brown are for the heater element (earth + Pos), the purple will be for the signal wire, will be a 1v sensor and will earth through the manifold :D
Might not be right but I am 90% sure
thegingerwhinger
29-06-10, 10:05 PM
2nd that
matty h
29-06-10, 10:28 PM
I am wiring it up to a air/fuel ratio gauge would I be right in thinking that I need to wire the heater wires to a igntion feed and the other to earth.Then the third purple wire to my gauge.
No the heater element is controled by the ecu and will be only 5v (maybe 1 Volt)
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