long tube headers/MIL code PO133
11-05-2008, 01:26 AM
#1
1st Gear Member
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Join Date: Jun 2008
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Posts: 86
long tube headers/MIL code PO133
I have now gotten my JBA long tubes/hi-flow catted H pipe/Axle back's/3.73 gear installed. Now i keep getting a code for my O2 sensor. PO133. NEVER under hard acceleration/drag racing..JUST when lightly accelerating? Whats weird is this is for the front O2 i've been told. I thought the rear O2 would cause a MIL light with headers...etc? NO one seems to have the MIL eliminator pigtail harness anymore? Do those scre in O2 spacers work? Will they throw off my cuatom tunes installed ion my SCT SF3? thanks alot,Joe
11-06-2008, 09:21 AM
#4
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Join Date: Jun 2008
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Wrong section? I have a SCT SF3 tuner. Deep in the adjustable custom tune files it shows...rear O2 on/off. Currently on. What will happen if i turn them off? Will it afect the way the car runs/affect the tune at all? I have three custom tunes set to my combo of parts. Thanks!!
11-06-2008, 12:07 PM
#6
2nd Gear Member
Join Date: Sep 2008
Location: NY
Posts: 396
Turning them off would be the best solution, they are just their to make sure you're cats are working. O2 extension for you're car are here: http://www.americanmuscle.com/bbk-o2...harnesses.html . Self-explanatory on what they do and they will make you're cel go away if the O2 sensors is your only problem.
03-02-2009, 09:56 PM
#9
5th Gear Member
Join Date: May 2007
Location: Central Texas
Posts: 2,388
No no no!!! You CANT turn off the front sensors!!!!
You're probably getting the code due to the delay between the reaction of the sensor due to being farther away from the stock location. The computer is detecting too long of a delay in its reaction to when it should react to air/fuel variations.
Your tuner will need to adjust the delay in the tune to compensate for the different location.
My tune was modified early on to prevent this.
How do you like them headers otherwise?
You're probably getting the code due to the delay between the reaction of the sensor due to being farther away from the stock location. The computer is detecting too long of a delay in its reaction to when it should react to air/fuel variations.
Your tuner will need to adjust the delay in the tune to compensate for the different location.
My tune was modified early on to prevent this.
How do you like them headers otherwise?