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how to check 02 sensors ?

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Old Dec 29, 2004 | 05:06 PM
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chris2000ss's Avatar
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Default how to check 02 sensors ?

anybody have a good method of checking the front 02 sensors to see that they are functioning ok??
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Old Dec 29, 2004 | 10:09 PM
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Do you have a scanner like EFILive or know anyone who does? If so, you can simply watch the O2 voltages fulctuate between lean and rich values and look to see if they are throwing and diagnostic trouble codes (failure codes).

What are your symptoms?
What makes you think the may be bad?
How many miles are on your vehicle?

All my best,
Steve
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Old Dec 30, 2004 | 08:01 AM
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well,I just installed a big cam and lt headers and i'm waiting till spring for a tune (car is put away for the winter)car is running very rich and i wanted to make sure everything was good to go when I do get a tune(wide band of course)..

basicly i want to make sure the o2's are ok so i get a good tune..they have about 38,000 miles on them..
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