code p155 o2 sensor help please

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Sep 14, 2008 | 12:01 PM

hevymetalg

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code p155 o2 sensor help please

ok im geting a code for o2 sensor its bank 1 sensor 2 what sensor is that i want to change it thanks alot.

Sep 14, 2008 | 02:32 PM

02StanGT

Overdrive Member

Joined: Sep 2005

Posts: 4,053

From: Granbury, TX

RE: code p155 o2 sensor help please

Should be the one right before the cat. The upstream side.

Sep 15, 2008 | 04:50 PM

hevymetalg

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1st Gear Member

Joined: Mar 2008

Posts: 260

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RE: code p155 o2 sensor help please

what does that one do exactly or is it a monitor only?

Sep 15, 2008 | 07:58 PM

02StanGT

Overdrive Member

Joined: Sep 2005

Posts: 4,053

From: Granbury, TX

RE: code p155 o2 sensor help please

Monitors what goes into the cat, so the one after the cat knows when the cat is going bad.

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