Can't Get All the Emission Parameters to Activate on 09 2.2
This issue is getting to me... I have to pass an OBD emissions type test in 2 months. I have a decent scanner that shows no CODES no PENDING codes but the emission status is reading not ready. Unlike other jurisdictions here ALL systems must read ready to pass now.
The car had a P0104 code 2 months ago, which I got rid of by cleaning the throttle body and MAF sensor. I also changed the air filter and CLOSED a gap the pinhead at the oil change place left in the air intake box because it was so hard to close properly. (then leave alone like I told you clowns on the work order LOL)
Since then I have had no codes. Much better documented gas mileage and overall performance IMO.
However my reader continues to state the evap system is not ready to emission test... I read that if you constantly have a full tank of gas it won't activate, of which I was guilty. I never let the tank go below 3/4's in the colder weather as I don't drive much then and would fill up every week out of habit.
After reading that could be the problem I left the gas tank between 3/4's of a tank but never below 1/4 as verified by the reader too, for the last 135 miles. After almost 2 weeks of regular driving I still can't get a code to point where to look or a ready to test signal.
Any thoughts on how to tackle this issue, cheaply without just throwing parts at it?