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Discussion Starter #1
Had a new Cajun Stage 2 exhaust installed JBA Long tube, CATB and exhaust

Been getting P1283 and P0037 codes
Runs decent.
P1283 > check for air leaks > none until you get to the clamps that are past the CATS
P0037 > * this is where I could use some help reading the tea leaves *
Voltage Readings
bank 1 sensor 1 > .2 ~ .6 with minor fluctuation
bank 1 sensor 2 > (suspect sensor) .3 constant
bank 2 sensor 1 > .3 ~ .9 fair amount of fluctuation
bank 2 sensor 2 > .3 ~ .6 fair amount of fluctuation but less than sensor 1

I am NO expert at this but just want to get it right.

I hope to have my UPREV from Joe soon and looking for it any day.

My thoughts is bank 1 sensor 2 is bad and maybe sensor 1
Bank 2 sensors appear fine.

I plan to have the clamps welded when they install the resonator.

Seems bank 1 is lean and bank 2 is about right (just my inexperience guess)

Any thoughts that UPREV will cure a lot of this?

Dying to get the truck right,

Thanks
 

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This post might help from over on our Armada forum:

 

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Discussion Starter #3
Thanks, going to inspect the ds b1 sensor some more.
 

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Discussion Starter #4
Think I figured it out.
Did an air flow learning by unhooking the MAP sensor > P1283 hasn't came back.
The P0037 did come back but I just replaced the DS B! o2 Sensor and the readings are much better and the code has not come back.
Also checked the voltage on what the o2 connects to and it passed so I just replaced it ( it was new ☹ ).
At least I feel better now,

Still have the pesky door pretensioner light to deal with so - NEXT.:unsure:
 

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That P1283 on my Titan is always burnt out gaskets between headers and catback system! I double up on gaskets at the four flanges this time will see how it works out! I did this last week when I went all JBA catback, my mid-pipes are ca'juns no converter's. UpRev tune also, two years now.
 
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