Question about 1996 Volvo 960

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O2 sensor 1996 volvo fail emission test

Had emmissions test done failed they said o2 senser could it be as simple as blown fuse?

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There is a slight possibility if the fault for the O2 sensor heater element, which is powered through a separate fuse, but it's unlikely.

Posted on Jan 03, 2009


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SOURCE: o2 sensor 1996 volvo fail emission test

If you have trouble codes stored in your cars computer for O2 sensors a fuse will not fix it. One or all of the O2's may need to be replaced. There are test that can be done to confirm which one.

Posted on Jan 28, 2009

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What causes co & hc readings to high

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Could a blown fuse in the fuel pump have me fail emmission test

No. If you have failed your emission test, they should have told you why it failed. If not, replace the oxygen sensor (O2 sensor); some makes/models have two - so find out when you go to the auto parts store.
Also, as a tip, make sure you have driven your car a good distance before going through to be tested. If the engine is not at "operating temperature" it will not read on their machines correcty.
Please let me know if you need further assistance.
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Code poo31 showing and what would be the possible cause and what part to be replaced?

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Apr 29, 2009 | 1996 Volvo 960

1 Answer

O2 sensor 1996 volvo fail emission test

If you have trouble codes stored in your cars computer for O2 sensors a fuse will not fix it. One or all of the O2's may need to be replaced. There are test that can be done to confirm which one.

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