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View Full Version : Evap and O2's will not become ready


smooth01
October 1st, 2013, 03:16 AM
As stated my evap system and O2'S will not ready, the O2's heaters are ready and everything else is. Not sure what is going on, Im running a COS 2bar tune. Car has passed inspection before with out issue, not sure if I changed something I wasnt supposed to when I-re tuned for bigger turbo. I have put over a hundred miles on it (not that means anything) and system still not ready, No codes are being thrown.

Any help is appreciated
Thanks Russ
joecar
October 1st, 2013, 07:23 AM
What are you using to read the readiness states...?
smooth01
October 1st, 2013, 07:52 AM
What are you using to read the readiness states...?

EFI live scan tool, and when i went through inspection the said it those two system were not ready, have not put it on my Verdict scanner yet
joecar
October 1st, 2013, 09:43 AM
Your O2 DTC's are set to Not-Reported in C6001.
smooth01
October 1st, 2013, 10:45 AM
Your O2 DTC's are set to Not-Reported in C6001.

For the front O2'S correct?, I will change that back to factory then and see what happens

I dont remember ever changing those O2 DTC's, dont knw why I would either. HMMMM
smooth01
October 21st, 2013, 04:51 PM
Flashed the changes to the O2's in the DTC section, drove it back and forth to work for a week or so, put around 200 miles on it, but the the evap and O2 sensor will not perform a readiness check, no CEL either. Not sure what is going on. Made a few more changes in the DTC section, going to see what happens.
ferocity02
October 22nd, 2013, 06:33 PM
Your drive to and from work may not include the correct type of driving for the tests to run. There is a GM drive cycle that is supposed to get all the tests to run, it's in the EFI Live manual.

BUT, I've tried the drive cycle and it hasn't worked for me in the past. The O2 sensor heater was the one that wouldn't work for me, even though it's supposed to be the easiest. Catalyst and EVAP were also hard to get. I would drive hundreds of miles and they wouldn't pass, reflash, and they would pass within a few miles... very strange.
joecar
October 23rd, 2013, 04:38 AM
smooth01,

try what ferocity02 said: re-flash and drive.
smooth01
October 28th, 2013, 11:47 AM
Sorry guys Im a dumbass, I forgot to lower the closed loop temp back to normal, so now I knw why it the O2's were not ready and evap also. After making the temp. change for CL the CEL came on a day later P0446, so Im going to take care of that issue and run it through inspection.

Thanks for all your help