**UPDATE** -- the owner took his motorhome to another dealer, and duplicated the 'problem' by connecting to the ATM sensor instead of the MAP/Boost sensor with the extreme puck. The result was a 1 PSI change in the reading at the ATM sensor...works out to 1500 feet in elevation (higher...not lower in elevation).
Stock -- 14 PSI, and with the ATM connected to the Extreme Puck instead of MAP -- it read 13 PSI.
There isn't a system in the world of engine design that adds fuel the higher you go in elevation (unless you're the space shuttle), and even with this scenario the fueling
would be less--not more. The dealer told him the opposite...and having it connected this way blew up the engine.
The customer commented that he liked the dial turned up all the way
....and that's the rest of the story. Hope he'll put this to rest and admit that the C7 CAT has
a huge following of engine failures in multiple RV forums, with totally stock unmodified engines.
(This was installed this past early June/2012). They 'claim' the unit was 'T'd with the Baro sensor, not the boost sensor and the ICP. According to Vas' email this morning, that should have set codes and not worked 'if anything'. 