2003 Yukon SLT still not ready for emission test.

[zmann96]

I now have 619 miles on since I fixed the coding issue. No codes have come up. I hooked up my OBDWIX software and I've posted the two screens. the numbers for the system ready have not changed from 200 miles. do I just keep taking it out for runs? One question, I live in NH and the weather is our typical low 30s at night and high 40s to 50s during the day, does that hamper the clearing for system ready proceedure?

 

[DirtDigler]

This probably won't help, but on my 01 Yukon, nobody could get it to pass smog no matter how many drive cycles. No codes, just monitors not ready. Finally had to take it to the dealer. They did something with the ECU and it finally passed. Had no issues since.