Pending OBD II codes

[gkudsk]

How long does it take for an I30 to complete all required tests for emissions testing after replacing an o2 sensor? I've driven 200 miles and the readiness tests for the o2 sensor catalitic converter egr are all pending.

[Nahkapohjola]

Originally Posted by gkudsk

How long does it take for an I30 to complete all required tests for emissions testing after replacing an o2 sensor? I've driven 200 miles and the readiness tests for the o2 sensor catalitic converter egr are all pending.

On 4th gen maxima Nissan Factory Manual (-99) page EC-45, 2k2 5th gen Maxima manual page EC-83 explain a "driving pattern" for 20min test drive which would teach ECU. Check for yours, click 'Favorite Links' from link below; use that "driving pattern" as a search word. Some say one week 'daily drive' is needed (I have no experience). Over 30min batt cable off resets/clears ECU data memory.

Related text copied from page EC-78, maxima 2k2 manual:
"If a vehicle is rejected for a State emissions inspection due to one or more SRT items indicating “INCMP”,
use the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.

Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer’s normal driving pattern; the SRT will indicate “INCMP” for these items.

The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM
memory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will continue
with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the vehicle is returned to the customer untested."