What type of equipment was used to read the codes?The reason I ask is some equipment won't read all of the transmission codes.It sounds like a stuck 2-3 solenoid or a valve in the valve body.If the speedo is acting up I would change the speed sensor.If you don't get a good speed sensor reading the trans will not know when to shift and most of the time you will get a ratio code stored for the transmission.
__________________
Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
