Tranny problem

[626cb7]

I replced my TCU twice already. And my trany is still not shifting correctly Either its somthing eles or i just have bad luck with TCU's.
So i bought another TCU today and im going to install it tommorow. But befor i install it i wanted to know if anoyones had this problem, is it the TCU or is it the Trany?
Simptoms: When i press the pedal lightly it wont shift till it hits 4,000 or 5,000 RPM, or somtimes it wont shift at all.

Thankyou

[bruno8747]

Did you ever do a transmission flush? And are you getting any codes from D4 or Sports light?

[NAiL05]

Could be your shift solenoids but as the person mentioned above said check those first.

[accord91lx]

also check the cable from the throttle body to transmission...that plays a role in shift points.

[xaxis360]

Yeah, the shift control cable can make your trans. act crazy if its not synchronized. Also, have you checked your TPS and coolant sensors. The TCU gets an input directly from the TPS to determine shift points. If its showing a high reading, it will think you are trying to accellerate faster than you are and cause that.

[626cb7]

I checked the codes and for the D4 I got code 15. Can anybody confirm if thats for the speed sencer. and would the speed sencer cause the transmission not to shift.

Thank you once again