i was getting a 0171 and 0174 bank 1&2 running too lean, i've swapped all four o2 sensors and now getting an obd-II code of p1519 which points to the intake manifold runner control valve closed. I've talked to a ford dealer and they talked about a bushing on the solonoid might of failed. do u have any input on any of this? how about where that solonoid is located? thanks
