Originally Posted by 92olds88royale
i replacted it 2 weeks before the problem started happening. the brand was Standard. this time its a bosch i know its crap but autozone napa carquest and the other store dont carry anything other than bosch so i had to use it. i looked over the wire on the old o2 sensor and it had a little slice in it. my guess is from when my i changed the spark plugs 2 weeks after and the problem started happening i must have hit the o2 sensor wire with the ratchet.
Oh. Well good luck with that Bosch sensor. As you know, many on here have had bad experiences with them on the Bonneville.
If you do end up having to replace it again, there are now a couple know good sources for the AC Delco sensor that will ship more rapidly, if past experiences are any indication.