While riding yesterday my check engine light continuously flashed and it went into reduced power mode. I turned off the sled and turned it back on and the light went out with regular power. I discovered that if I slowly got into the throttle it had no problems, but then I gave it a lot of throttle the light would come on before it started to blink. If I let off the throttle the light would go off and I could continue. I could get the sled up over 80 mph slowly by applying a constant pressure to the throttle. I know that it is not water in the gas, because I only run 91 octane from BP and I always run the red bottle of heat went I fill up. Anybody ever had this problem? Could it be the DET sensor? Thanks for your help!
2009 Polaris 800 Switchback Dragon
- Thread starter jayrob7
- Start date
stormrider3
New member
If the BP gas is ethanol don't add more alcohol to the tank with the Heat
My 2010 800 did the exact same thing you described and it was the DET because I was having a slow burn down on the crank side. I should have stopped but that the point of the DET was to prevent this so I took it easy and drove last 20mi home. Took it in and had a hole burned through. 
Well, 2 scuffed pistons, broken oil check valve, broken pinion bracket, and broken motor mount bolt that is stuck in the block! Needles to say WOW. And I thought that it was going to be a easy fix!!! They have to pull the motor to get to the bolt. I am having them replace the fuel filter, voltage regulator, and install a PVC. Not a cheap trip to the shop!