Hello,

Sometimes Im getting P2A03 error code. I've read a lot of posts and the main cause is exhaust leak. Im planning to replace my gaskets soon. Also, planning to clean MAF sensor as well.
Can someone have a look at my sensors parameters below? Are they Okay?
Thanks

 

I think it's a problem that the voltages are not the same for the #1 sensors on banks 1 & 2. Notice that the #2 sensor voltages are about the same. I suggest replacing the bank 2 sensor and following the self-learning process. Or maybe just try the self-learning process first to see if that helps.

http://infinitihelp.com/diy/gcoupe/p...f_learning.php

 

Looks like it's running a little bit rich. Try unplugging the MAF (It will set a code) and see what the readings are. The car should run in a default state.

The first set are A/F sensors, so you can probably swap sides to see if the error code moves. The rear O2 sensors verify the A/F sensors are working correctly.

I used SeaFoam to find my exhaust leaks.

 

Thanks a lot for your help! I didn't try a self-learning process, but the error is not appearing now. Iet's see what will be further. Maybe it was just a glitch Checked O2 sensors using scanner and seems they are working as expected.