Ok, who's bright idea was it to make a max of 86 degrees to initiate the Evap Service Bay test?

Being in Phoenix, Arizona we won't see 86 degrees for months.

 

How about a link to what you're looking at?

 

The one I read was on a GM forum, but the same thing us stated on Drive Cycle thread at:

https://www.chevyhhr.net/forums/prob...e-cycle-50439/

Paragraph that starts with:
CONDITIONS FOR MEETING A COLD START

By being able to use the Evap Service Bay test found on many mId-range and OEM scan tools, you can essentially bypass the long drive cycle (18 cycles) of the Evap system to set the readiness of the Evap monitor.

But, if you can't be in a environment of 86 degrees or less, the test aborts. And also if the conditions can't be met, your Evap monitor will not set just by driving.

 

You can have one readiness monitor "not ready", and still pass smog. Do you have other I/M readiness monitors "not ready", or is it just EVAP?

 

No, I'm good. I just found it odd that such a strict condition was in place for a fairly common system.

 

you can have 2 not ready.... done this many times after clearing codes

 

"Drive Cycle" is a fiction, normal driving for 3-5 days is fine. I agonized over it for weeks, it is not possible. Not worth your angst, I paid for it already.
The Federal rules allow 2 not ready, I'm not sure about states like California that have a waiver.

 

It was not possible because there were things out of order with your copy and paste in the link above. I've edited it, got it in the right order now. And there was a mistake in step 7. It said
"Mass air flow (MAF) signal between 15-30 g/s
􀁺 RPM steady between 1,200-1,500 RPM." This was indeed impossible. Not even close to possible.

I've corrected it, now reads
"Mass air flow (MAF) signal between 4-30 g/s
􀁺 RPM steady between 1,200-1,500 RPM"

Challenging, but definitely not impossible.

 

How Many Monitors Have to be Ready?The US Environmental Protection Agency (EPA) guidelines allow up to two monitors to be in a "not ready" state for model year 1996 through 2000 vehicles and one monitor "not ready" for 2001 or newer model year vehicles.


California specifies that one monitor to be EVAP.

 

Well, I guess the workaround in hot areas like Phoenix, would be to not purchase a car in the summer. Then your smog check will always be at a good time of the year.