We are getting ready to change the PVC valve as the hose was rock hard when we took it off to check the PVC. PVC is working, but hose may have had a crack in it considering how dry rotted it was. So we will see once I order the part. The next thing will be the EGR. Trying to check the simple things first since the original codes read the sensors, and all sensors have been change or tested to show that they are working properly. It is just wierd that you can have your foot on the break and vehicle in reverse and once you touch the gas pedal it stalls. Though it doesn't do it all the time. Like I said we drove it the day before and no issue and then my daugher drove it and no problem until Sunday.