Code P013A! Please help

[jarrensandoval]

Recently this code came up and it reads "oxygen sensor slow response rich to lean bank 1 sensor 2."

Has anyone experienced this before? I got my car tuned recently at Church automotive and it was explained to me that it could be a bad o2 sensor or maybe an exhaust leak.

Any ideas on how to fix this ?

[steve99]

Originally Posted by jarrensandoval

Recently this code came up and it reads "oxygen sensor slow response rich to lean bank 1 sensor 2."

Has anyone experienced this before? I got my car tuned recently at Church automotive and it was explained to me that it could be a bad o2 sensor or maybe an exhaust leak.

Any ideas on how to fix this ?

You would need to do further diagnostics via logging and look at the afr readings of the front and rear 02 sensors and compare, with commanded AFR. also look for high LTFT.


If you have no devices to log ecu parameters then take it to a shop


Or just take a punt on the rear 02 being faulty


Code P013A indicates problem with rear 02 sensor, but it could be exhaust leak or cracked header, or a multitude of other issues

[jarrensandoval]

Originally Posted by steve99

You would need to do further diagnostics via logging and look at the afr readings of the front and rear 02 sensors and compare, with commanded AFR. also look for high LTFT.


If you have no devices to log ecu parameters then take it to a shop


Or just take a punt on the rear 02 being faulty


Code P013A indicates problem with rear 02 sensor, but it could be exhaust leak or cracked header, or a multitude of other issues

Appreciate the response. I had it checked out and discovered that my ethanol sensor is actually plugged into the port where the original o2 sensor would be plugged into. I had the delicious FNG tune before and never encountered this problem until I recently had my car dyno tuned . I'm assuming that the code just has to be deleted since I'm not using an o2 sensor there .

[Kodename47]

Originally Posted by jarrensandoval

Appreciate the response. I had it checked out and discovered that my ethanol sensor is actually plugged into the port where the original o2 sensor would be plugged into. I had the delicious FNG tune before and never encountered this problem until I recently had my car dyno tuned . I'm assuming that the code just has to be deleted since I'm not using an o2 sensor there .

Yes, delete the DTC.

[steve99]

Originally Posted by jarrensandoval

Appreciate the response. I had it checked out and discovered that my ethanol sensor is actually plugged into the port where the original o2 sensor would be plugged into. I had the delicious FNG tune before and never encountered this problem until I recently had my car dyno tuned . I'm assuming that the code just has to be deleted since I'm not using an o2 sensor there .

Hmmm,


Assumed the tuner would have know that if it was rear 02 connected flex kit :-)


If they fitted a flex kit using the rear 02 sensor as input then the tuner needs to disable the rear 02 associated DTC in tune and also disable the rear 02 afr corrections.


I can understand the tuner overlooking a DTC disable but once you queried them on the CEL code/DTC they should have immediately tweaked to the problem if they fitted flex kit and/or tuned car with kit fitted



Simply clearing the code with a code scanner wont fix problem, needs to be done in tune.