I recently purchased an '04 Itasca 30W. Got it home and tried to back up my driveway grade and the engine dropped to rough idle and the readout said Reduced Eng. Power. Turned off the ignition and back on and tried again with the same results. I have tried backing up on different up hill grades and different conditions, eg. paved or gravel and always the same. The local Workhorse repair facility says they have never heard of this and the computer has no stored fault codes. If this is a normal protection condition then it could be potentially a big problem if, for example someone parks in front of me on a grade or anytime I need to back up on a grade. Any advise would be appreciated. Thanks.