i was recently given a 95 windstar 3.8l engine by my in-laws and from reading a lot of info on the net about them i know exactly how much they like me now. the check engine light is on, bought a code scanner and got 5 codes p1405, p1131, p1151, p0171, p0174. i checked the hoses on the dpfe sensor and sure enough one of them was off and the other was in the wrong place, fixed that and drove the van, the light came on again now it's showing 3 codes p1407, p0171, p0174. i read my repair manual about the sensor, said to take a meter and check the voltage on the sig/rf line with the ignition on and the voltage should be between .20 and .70 volts i'm only getting .06 volts, any ideas? also am wondering if the dpfe problem is contributing to the 0171 and 0174 codes. thanks in advance for any help