How do i know when to replace oxygen secors?

CAMAROWITHBASS

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Still Plays With Cars

Join Date: Sep 2002

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#1

How do i know when to replace oxygen secors?

10-20-2002, 05:11 PM

Can you tell just by looking at the O2s that they need replacement?

Where are they located?

Do i need a special tood to take them off or to put them back in?

My car has GPS trackin\',traffic alert,its own phone #,PS2,screens. And What da H3ll,When I Turn da key it says \"You\'ve got mail\"..... <br />I swear and promise.. I\'ve had more cars then Charlie Thomas.. bounces in a Monte\' that hopped.. Pimped old skoo Blazer on Chopz, Today Its a Camaro at all da plya spots.
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hockeyman

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#2

10-21-2002, 12:09 AM

1) Usually, your SES Light will come on, and when you have it scanned, it'll tell you what sensor needs replacing. Other than that, you can pull them and check the voltage they should be giving out using a Ohm Meter Guage going by the specs in the service manual.
2) If you have a 95-97 3.8 engine, you have 4 O2 Sensors. I'm not too sure of the other years.
3) Yes, you need to go to your local parts store and get an oxygen sensor socket. It makes it much easier then trying to use a wrench.

Marc

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