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[widing]

I have a 1996 Opel Omega. And got the fault codes:
38 and 91. Is my lambda sensor faulty?

[widing]

38 Oxygen sensor circuit - voltage high
91 Oxygen heating - voltage high

[RobG]

Before condemning the sensor I`d do a thorough inspection of the wiring first

[widing]

Before condemning the sensor I`d do a thorough inspection of the wiring first

I've check the connector and it loosk fine, what else should i check?

[Andy H]

I think the two 'high voltage' signals indicate an open circuit.

An open circuit could be caused by either faulty wiring or a faulty sensor.

If you have satisfied yourself that it isn't a wiring fault then it is probably time for a new lambda sensor.