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My 2002 Ford F250 Superduty 4X4 Pickup, 5.4 liter, failed the California smog test. The machine showed the Bank 2, #1 oxygen sensor is not working. I replaced the sensor and the machine still says no voltage. Does anyone know what could cause that?
Thanks for the information. The sensor tested good. I think I'm going to have to follow the wires. I hope it isn't the computer that has gone belly-up.
