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O2 Problem

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Old Apr 12, 2006 | 09:02 AM
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Default O2 Problem
Ok here is the story, I cant remeber what code it is but the description is Bank 1 sensor 2 slow to respond. I went ahead and replaced the O2 and resest everything with 20 miles the code is back. This all started happening after I put a Fast intake on the car.

Any Ideas?
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Old Apr 12, 2006 | 10:07 AM
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Might just need a retune for the extra airflow. Maf cal might now be out.
Im guessing, but have you had it retuned?
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Old Apr 12, 2006 | 01:28 PM
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Originally Posted by ringram
Might just need a retune for the extra airflow. Maf cal might now be out.
Im guessing, but have you had it retuned?
No I have not had it re-tunned since the Fast intake.
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Old Apr 12, 2006 | 01:32 PM
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You might also check for vacuum leaks on the intake.
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Old Apr 12, 2006 | 01:39 PM
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Can you post the actual code? I thought "slow response" codes were for the precat sensors. Bank 1, sensor 2 would be the driver side postcat sensor. Which one did you replace?
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Old Apr 12, 2006 | 02:16 PM
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Originally Posted by 2001NBMZ28
Can you post the actual code? I thought "slow response" codes were for the precat sensors. Bank 1, sensor 2 would be the driver side postcat sensor. Which one did you replace?
Sorry its the pre cat on the drivers side.
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Old Apr 12, 2006 | 02:25 PM
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Originally Posted by SMOKINV8
You might also check for vacuum leaks on the intake.

but would that cause both O2 to have the same code?
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Old Apr 14, 2006 | 08:57 AM
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More than likely, yes. Its easy to check for vacuum leaks though, just blow some smoke (or have a buddy do it if you don't smoke) around the edge of the intake while its running and see if it gets sucked into the motor somewhere.
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Old Apr 15, 2006 | 07:57 AM
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Is there a more accurate way to detect a vaccuun leak by scanning? Wouldn't throw off a table somewhere?
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Old Apr 16, 2006 | 10:44 PM
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I had the same problem on mine, but mine said just "bank" which are the ones closer to the engine. The bank 2 are the ones furthest from the engine
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