Universal monitor ying to find enable criteria.why do they not post it? Is customer trying to pass emissions?Īlso he may not be what the factory considers normal driving (meeting the enable criteria conditions) It may take a few weeks. If a small leak is present it takes approximately one week of normal driving to report a failure. Note the Small leak test can find leaks less than 10 thousands of an inch. If there are no faults and the conditions are correct this test will run and report a pass. Use the appropriate service information procedure for finding a small leak. DO NOT use this test to attempt to determine a fault. It may take up to two weeks to fail the small leak monitor. NOTE: If the vehicle does not report a result and the conditions where correct. There may not be a fault but it is a possibility Event hough you have cleared memory, a fault may take a long time to set a code. TheY have worked on my personal vehicles.
So I would explain that he may have evap, pcm issues or its just being a pain. Gotcha well we dont know if their was preexisting fault or not. If a fault is there it will show up and custoekr may have not known he had evap problem Make frequent trips to gas station (dont fill it and dont let it go below 3/8 or above 3/4. Make sure no codes, Make sure you can read data from evap make sure ect and iat coincide make sure no obvious evap faults bad gas cap (OE only) vacuum leaks etc and make sure tank always about 60 percent full. and the emission testing requires monitors be set.and usually everything is straightforward but sometimes things can take a long a time a week or two. broken hoses clamps hoses anything disconnected. Compare the iat and ect readings should be close and tell custoemr to keep tank about 1/2 to 5/8 for the next couple of weeks. I have attached factory information that shows this. If a fault is being detected the monitor will not complete. To complete a drive cycle you need to meet enable criteria. In order to reset evap/fuel monitor you need to perform a drive cycle.
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