ok i changed out both pre-cat O2 sensors, dumbass me i got them off e-bay about $42 bucks a piece,brand is prime choice out of ontario.They were brand new in box and fit to truck great,now every time i start the truck i get both codes:
p0132
p0152
i know they both mean high volts on bank 1 & 2 O2 sensor.i keep erasing them with my sc they keep coming back
i took the battery posts off twice for a while to reset comp. still getting codes.
i have searched this forum and many threads about O2 sensors and these codes but cant figure it out.i read bosch is crap and i imagine the ones i bought are junk too.
now should i just go to the stealership to get there new O2 sensors or is there a way to make these ones work good

truck: is 04 1500 qc 4x4 hemi
thx

 

Might be some disagreement from some guys but I replaced my front O2s with Bosch P/N 15504 from Autozone at $25 each. Ive had no issues from them.

 

k after further investigation with my superchips i figured out that it is sensor 1(driver side pre cat)banks 1 &2. i did the data logging with s/c and checked the voltage and trim of the O2, it does not work it stays at 1.269 volts w/no trim % while the sensor 2 (which is same brand)is working right and fluctuating volts slowly w/ 99.2% trim. so i must of got a defective sensor. hopefully they will exchange it!
so i switched it out for the original sensor. and wow does that factory sensor ever
fluctuate in volts and barely any trim % truck kinda runs like crap with one new and one factory O2's.
does anyone know what the trim % is?
is it fuel trim or oxygen trim?
thx