02 Sensor leaner with age? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-29-2004, 10:02 PM   #1
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Default 02 Sensor leaner with age?

I just had my SSE emission tested at the local Buick dealer.
Before the Tech tested it we talked about things that make the car fail.
He said the most common thing was plugs and wires.
I mentioned the 02 sensor and he said no the 02 sensor gets leaner with age?
Has anyone ever heard of this? I thought the opposite was true.
Or could they wear either way? lean or rich.
Anyway it passed with flying colors.
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Old 03-30-2004, 08:30 PM   #2
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Milage increases with a new o2. I think a bad o2 would go rich, so you don't run to lean, since that'* way dangerous then rich I'd bust out the chiltons and check, but i'm in my buddy'* film class, gonna watch fight club.
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Old 03-31-2004, 07:12 PM   #3
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Default Scan tool

Wish I had a scan tool so I could see these things.
Looking for one that is OBD ll compliant and downward compatible to my 90.
I check ebay they start out reasonable then shoot expensive by the end of auction.
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Old 03-31-2004, 10:17 PM   #4
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Yes, try the Actron CP 9145 with the optional cable for your older car.
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Old 04-02-2004, 10:02 PM   #5
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Make a cheap 160 baud cable here, http://w1.601.telia.com/~u60113744/*.../aldlcable.htm, and try out tunerpro with my LN3 defination file here, http://www.bonnevilleclub.com/forum/...ic.php?t=15967. I don't think anyone besides myself has tested it out, kinda wanted some feedback.
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