![]() ![]() The EVAP monitor checks for fuel vapor leaks (including a loose or missing gas cap).ĭuring EVAP system monitoring the PCM tests for vapor leaks by applying vacuum or pressure to the fuel tank, vapor lines and charcoal canister. For 2000 and newer vehicles, the leakage rate has been reduced to the equivalent of a. 040 inches in diameter in a fuel vapor hose or filler cap. For 1996 through 1999 vehicles, the federal standard allows leaks up to the equivalent of a hole. The EVAP system monitor checks for fuel vapor leaks by performing either a pressure or vacuum test on the fuel system. As with most other monitored OBD II systems, all EVAP electrical components are checked for electrical and rationality faults during continuous monitoring. The leak detection portion of the monitor may be activated under normal engine and vehicle operating conditions, during extended idle or soon after the vehicle has been shut off. A portion of the monitor is activated during canister purge operation that occurs under normal engine and vehicle operating conditions. The EVAP system monitor allows the PCM to test the integrity of the fuel system and its ability to draw fuel vapor into the engine for combustion. Here's some info on the EVAP readiness monitor, courtesy of NY State. *one of the reasons it took so many miles is the road I was on was difficult to maintain the steady speed of 55 mph so I had to drive for miles and wait for traffic to clear. You may have already done that in the course of your 250 miles, but it can't hurt at this point.īy the way for what it is worth, my battery is from may 2012 and I may have started my car three times between november and march and charged my battery 2 or 3 times just to top it off while sitting. ![]() The takeaway from the above is I couldn't get the last monitors to clear without the steady high speed driving. I am figuring some of that drivetime was my car idling a lot, too. Looking at the trip computer, it took a drivetime of around 4 hours and about 90* miles.Did the procedure again right away and the the two incompletes finally cleared.When I turned it off the first time that second day I was down to 2 incompletes (evap purge and heated o2). The first time I did this procedure I had 4 incompletes left, the next day I did the procedure twice. I did this three times over the course of two days.After each session I would stop, let it idle down and then turn the car off and removed the key.After I did the steady speed, I coasted in 5th gear from >55 mph down to around 25 mph without touching the brake and then accelerated up to more than 55 mph and held it for at least three minutes.That took care of most of the monitors, but to kill the last few, you need to get on the highway and maintain a speed of at least 55 mph for somewhere around 5 minutes without touching the brake.After I made a round trip, I would turn the car off, pull the key wait a few minutes and do it again.Started car warmed it up and drove it up and down the road maybe 5 times a few miles at a time. ![]() Here's how I did mine over the course of several days: My inspection expired too, so driving the car to get it to pass without getting a ticket was a bit of a drag and I wanted to get it done as quickly as possible. I haven't driven my car since November and during that time I had the battery out to do some maintenance. I just went through getting my car to pass readiness. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |