hi, i own a dakota that has gone into a limp mode on the transmission, 1st and 2nd gear is all I have. I had a code reader read the codes. 121 throttle position sensor pedal position A, 715 input speed sensor circuit malfunction,734 gear 4 ratio incorrect,731 gear 1 ratio incorrect. The truck has a 4.7 litre engine and a 45 RFE trans. spoke to a trans shop and they said I needed a selonoid block assy. $ 495.00. Yikes!! has anyone had the same problem Im having? any suggestions?

 

I dot know about a solenoid pack for the limp in mode is there any more codes in the Can u manually switch to 3rdwith the shifter? trans computer?