GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

fixing o2 bank1

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Old Feb 2, 2011 | 01:18 PM
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Default fixing o2 bank1

i had my cat deleted with the long tubes being put on . The guy told me i would have a engine light from the missing LT'S or o2 sens after the cats ...so how do i fix this situation as i have to have this fixed before i can get a tune......I was told the front o2's are the most important ones.....IDK how to approach this
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Old Feb 2, 2011 | 01:24 PM
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The front 02 sensors are used, the other 2 can de deleted with a tune.
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Old Feb 2, 2011 | 01:33 PM
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Why would you have to fix it before you get it tuned... You've made a few threads lately and frankly it sounds like you have zero idea what you're even doing. You don't even give us the information we need to help you.
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Old Feb 2, 2011 | 01:40 PM
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Default what info do you need ?

[[/B]
Originally Posted by 00ChevyScott
Why would you have to fix it before you get it tuned... You've made a few threads lately and frankly it sounds like you have zero idea what you're even doing. You don't even give us the information we need to help you.
what info do you need ? the guys at Advance scanned the truck it came back Bank 1. period. Black bear says i need to have my sensors working before he can tune it. the cats were deleted with the lt's being added.so i only have front o2's. should i be getting more info from the scanner at the auto store, like a specific number ?of code?
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Old Feb 2, 2011 | 02:17 PM
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Your info to Blackbear may be conflicting and they may have misunderstood..Just tell them you need the rear o2's turned off because you have LT's with no cats...

After that you wont have that code pop up anymore..

The code's you got from the parts store are for the rear o2's..There is about 12 codes to turn off that go with the rear o2's..

Oh where are you at up there?? You could be close to a local tuner that could dial the tune in a littler better than a mail order could....

Last edited by andrew383; Feb 2, 2011 at 02:23 PM.
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Old Feb 2, 2011 | 02:27 PM
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Default up her in Detroit area

im up in the Detroit metro area . I was thinking a live tune would be best also
Originally Posted by andrew383
Your info to Blackbear may be conflicting and they may have misunderstood..Just tell them you need the rear o2's turned off because you have LT's with no cats...

After that you wont have that code pop up anymore..

The code's you got from the parts store are for the rear o2's..There is about 12 codes to turn off that go with the rear o2's..

Oh where are you at up there?? You could be close to a local tuner that could dial the tune in a littler better than a mail order could....
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Old Feb 2, 2011 | 09:11 PM
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Originally Posted by 40series
im up in the Detroit metro area . I was thinking a live tune would be best also
Im not saying that the mail order from any sponsor would be bad but a in person tune will get the tune closer to where it needs to be

Sent you a pm BTW..
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Old Feb 2, 2011 | 10:05 PM
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Originally Posted by 40series
[[/B]
what info do you need ? the guys at Advance scanned the truck it came back Bank 1. period. Black bear says i need to have my sensors working before he can tune it. the cats were deleted with the lt's being added.so i only have front o2's. should i be getting more info from the scanner at the auto store, like a specific number ?of code?
How about telling us what SPECIFIC check engine codes were on?
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Old Feb 3, 2011 | 10:12 AM
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Default just got the codes

i had Auto Zone check the codes and they are ....P0420 bank 1 and p0327 knock sensor ..... i just did the knock sensors but got a cheap torque wrench and really didnt know how tight the sensors were looks like imma have to go back in
Originally Posted by 00ChevyScott
How about telling us what SPECIFIC check engine codes were on?
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Old Feb 3, 2011 | 10:16 AM
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Originally Posted by 40series
i had Auto Zone check the codes and they are ....P0420 bank 1 and p0327 knock sensor ..... i just did the knock sensors but got a cheap torque wrench and really didnt know how tight the sensors were looks like imma have to go back in
P0420 is a catalyst efficiency code. Not an O2 sensor code.
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