Joe DelVecchio
New Member
I have seen many posts online with this issue. Mine has the vehicle in Reduced performance mode. I have checked all components of the fuel system. Vehicle starts rough when cold but soon smooths out with no mis-fires. Drives fine, although limited power due to the fault. Fuel pressure at the rail is fine. Pump runs fine. No clogged injectors, MAFS's good. This all happened when I turned a corner, rpm's came down but it stayed in 3rd gear and bogged down. Transmission is ok. I wondered if the anyone knows about the software upgrade and if it addresses this issue. It seems the computer sometimes doesn't shift all the way down on turns or stops.
2011 RR 5.0 HSE, non-supercharged, not a sport
2011 RR 5.0 HSE, non-supercharged, not a sport