hi all. got a 06 acura tl with s/c had the pro cat, now I have the pre-cat deletes on. About 30-60 miles of driving I got a cel code P0139
02 circuit slow response (bank 1, sensor 2). I have the O2 simulators in the car. Any input guy? so this code is related to the o2 sensor in the bank of the engine?
thanks

 

Unplug the negative terminal for 10minutes

And shy away from using cruise control (I discovered this can trigger it instantly)

If the light keeps coming back you can get different simulators from rv6

 

thanks for the help. I had the negative removed and still occurs. so i just will give a call to richie.

 

Bringing it back from the GRAVEYARD!!!

So i've had the P0139 code on for about 1.5 years and NOW its starting to bug me. I have the L defoulers in there and about a month ago i had it gunked up which is why i thought i was getting the code. I cleaned out the defouler and the 02 sensor and just got it back after 30 miles of driving while i was just cruising. Thinking of swapping the rear 02 sensor with the front 02 (if the same) to see if its the Defouler or the 02 sensor. Should i just go back to the regular str8 defouler afterwards? or start looking for simulators?

 

Sometimes the sensors get damaged during the install and need to be replaced. Try swapping sensors between the front and rear bank and see if the code still comes up on the different bank.

 

Rich,
i have a 2006 TL. The rear secondary sensor is $140 compared to the front secondary 70... The 2004-2005 are priced evenly. Why the difference in 2006? Will i still be able to swap them?