dodge carvan 2003 codes P0731 and O1790 what di i need to do to fix it please.

Question

Dodge carvan 2003 getting codes P0731 first gear ratio intermittent and also P1790 malfunction immediatley after. What do i do to correct the problem please.

Answer 1

P0731 gear ratio error in 1st

P1790 Fault immediately after shift

This is a internal tranmission failure, Even if you replace the solenoid pack, the input and output speed sensor, you will have this this is a loss of prime or a loss a fuild pressure,The fix is a new or rebuilt transmission