p0132 & p0152 codes, rough idle when cold
 

Hi everybody,

These two codes popped up just yesterday for what seems to be no apparent reason:

p0132 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor1)
p0152 - O2 Oxygen Sensor Circuit High Voltage (Bank2, Sensor1)

I have ART test pipes, but my car is an 03 and I have had zero issues with them throwing codes. Also what are the odds of both O2 sensors going out at the same time?

I did get gas at a different gas station than usual and the car does also seem to idle rougher when cold, but even when switching back to my usual gas station and filling up...still the same code, so what gives gents? Any suggesions as to the cause ?

btw those two codes would translate to both 02 sensors registering a rich condition on both banks. Could this possibly have anything to do with my maf sensor going bad and f-ing up the A/F ratio?

I'm also considering the crankshaft position sensor as a root cause, as I would guess that would affect both 02 sensors at the same time. C'mone ppl I know there are some troubleshooting wizards on this forum.

Did you ever find out the fixed for these 2 codes? I'm having the same issue here :(

Same issue here on my G. What was the issue Row?


Thanks


I know its an old thread but I haven't a solution anywhere! I see your still on active!

I changed the 2 related O2 sensors and it solved the issue. Good luck!

I only run 93 octane either Sunoco or Exxon. I fixed a vacuum leak and am all good there. I actually replaced both downstream O2 sensors and for some odd reason they finally came online and started working the next day and so far I haven't had any CELs, pending faults or negative fuel trims beyond -10%. Compression test and leak down test came back pretty good for a 2003 with 245, 000 miles on it.https://cimg4.ibsrv.net/gimg/my350z....f7c440ca96.png

I just did a leak down, and I was only putting about 14-15 psi into the cylinders why is yours so high?

That's the calibration this tester came with. From what I have read the lower quality testers use lower psi, but I'm not sure.