Testing a lambda sensor.

[-ghost-]

My moms zafira has had 2 new lambda sensor but the fault remains.


A few people have reported wiring faults. So how would I test the wiring there is 4 wires.

The car is a 1.6 zafira 2003.

Help please.

[IceBlade]

Not sure on how to test because some vauxhalls use titania types instead ot the normal zirconia types, best off trying to find someone with a diagnostics tool that can monitor the outputs to see if anyrhing is happening at the ecu..... ps what was the original fault and were the fault codes cleared after fitment??