02 Super Duty stalling problems
I am new to this site and looking at a friend's truck with this problem. He can be driving down the road and the truck will stall out. If he puts the auto tranny into neutral, it will usually start back up. He has had to pull over to the side of the road for a few minutes, before the truck will start back up. Last week, he drove from central Iowa to Branson, MO for vacation. He was pulling a small boat and for some reason got almost 20 mpg. He said 16-17 has been tops, since he has owned the truck. I added an Edge with Attitude and a 4" free flowing exhaust to the truck several years ago. During the trip, the CEL came on and the truck was more responsive when taking off from a stop sign and the boost was running 7-8 lbs higher than it normally runs. The higher boost could be because he was pulling the trailer and was in the throttle more than usual. That does not explain the better fuel mileage. It ran fine all the way down. But, coming back home, he said it stalled on him 4 times. I checked the codes and came up with P2036, P1210, P1211, and P 1249. I did a little searching on this site and found out that all of these codes could be the result of the programmer. I am mainly trying to figure out the stalling problem. Could it be the injector wiring harness under the valve covers? Thanks for any help.