OK, almost got stranded 20 miles out of Quartzsite, AZ the other day. I know the motor is not leaking on the intake side and it makes about 1.5lbs of boost at just 20mph. Last compression check was 115 and 102lbs. Uses 1qt of oil per 400 miles based upon 1/8th Qt for a 50 mile run. It will run for an hour and then all of a sudden the AFR goes to 10 and the only way to keep it running is to keep your foot in it….It quit a couple of times when I let my foot off the throttle due to gully or sharp turn. I can no longer use it because failure is not a good option as I am usually the only vehicle within many miles when I use it. Hopefully Nate will have an idea and I think its been doing this since new, but it now just does it worse and worse. I used to have to run it pretty hard to enjoy it but now I see that its the AFR that is going way too rich and I am wondering if there is a sensor that might be going bad? The piggy back fuel controller is basically turned off and this still happens! Help