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Old Jan 19, 2012 | 06:32 PM
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so after a long tube install ( done several months ago) if i change the front o2 sensors ( used denso) but reuse the stock rear ones for the rear o2 sensors ( which i did ) will this cause the motor to constantly try and compensate for what it thinks is a deffective cat by adjusting A/F? im having a bad idle problem that is getting worse and was fixed my replacing my front o2 sensors ( used the stock ones right after the install) but now im having the same problem. i have another thread titled "idle issues getting worse" for more info if needed.

trying to see if a tune would correct my idle problem by deleteing the rear o2 and compensating for the lt and bbk intake install. as well as the AIR delete
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Old Jan 19, 2012 | 08:42 PM
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The PCM does not compensate for a bad cat.

You need some tuning for the LT's and BBK intake.
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Old Jan 20, 2012 | 07:39 PM
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definitely sounds like you need a tune of maybe clean your maf
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Old Jan 21, 2012 | 06:26 PM
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did clean my MAF today and no change
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Old Jan 21, 2012 | 06:52 PM
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did you get the car tunned since you have done mods?
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Old Jan 21, 2012 | 06:57 PM
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You need to tune after a header install?
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Old Jan 21, 2012 | 07:14 PM
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Originally Posted by SKULL
did you get the car tunned since you have done mods?
no tune yet
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