Not necessarily. The only way you get one is if the wires are disconnected or the heater in them fails. The signal generating part just wears out over time. You might need a cat, but to be sure...
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Type: Posts; User: 4.3LXJ; Keyword(s):
Re: Low idle started after check engine light went off
Not necessarily. The only way you get one is if the wires are disconnected or the heater in them fails. The signal generating part just wears out over time. You might need a cat, but to be sure...
Re: Low idle started after check engine light went off
How long has it been since the O2 sensors have been changed?