This alarm resulted in limp mode, yet actual fuel pressure numbers exactly matched demand fuel pressure numbers as scanned with DBIII - as I had previously purchased the Rail Pressure Sensor unit, I decided to see if there really was any difference. Same values scanned, but P0190 alarm went away and so did limp mode - must be some preliminary reading taken by ECM that is not available to DBIII
So, now I guess it's time for the water pump and timing belt job, for which I'll wait for warmer weather - a few more months shouldn't hurt, since I've let the li'l mule sit for four years for a simple sensor replacement
