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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

o2 sensor question

   
Old Mar 22, 2004 | 02:16 PM
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94zLT1
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o2 sensor question
so i have a 94Z..with MACS what will happen if one or both of my 02 sensors go bad...what will it affect..?just a SES light?
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Old Mar 22, 2004 | 02:21 PM
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o2 Sensors are what give you your air fuel mix. If they are bad you wont have a good mixture and will be running rich or lean.
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Old Mar 22, 2004 | 02:42 PM
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what if only one is bad?
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Old Mar 22, 2004 | 02:43 PM
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Originally posted by 94zLT1
what if only one is bad?
Only one side of the engine will get bad readings then. If it has been a while since you changed your O2's, I'd just change them both.
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Old Mar 22, 2004 | 02:48 PM
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Not to jack this thread, but can O2's be cleaned? Will it do any good.

Thanks,
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Old Mar 22, 2004 | 02:52 PM
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so say one is bad ..how will i know? will a ses light come on or will i have to guess if im running rich/lean?
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Old Mar 22, 2004 | 03:00 PM
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Yes, your SES light should come on after about 15-20 minutes if you have a bad 02.
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