Chrysler Repair: Why Limp-in mode: 96 electronic transaxle?, technical service bulletins, solenoid pack

Question
my 1996 3.3 voyager goes into limp mode trans was rebuilt 1 year ago company is out of biz ,,the read out of cvi is (lr)56 (2-4) 60 (und)48 (od) 101  codes read out p1790  p0733 p0731 i have replaced input/output sensors and solenoid pack but still goes into mimp mode after 2 tries is it posible the 2-4 accumulator piston seal is causing my problem i have changed the fliter and fluid to atf3 and found no debri in pan or burnt fluid im at a totaly confused on this one and trying to avoid pulling trans thanks  

Answer
Hi Chris,
You are probably 'ahead' of me on troubleshooting the ETAX but here goes:
The cvi's look to be within the expected range.
And changing the speed sensors was a good idea given the 731 and 733 codes. But the 1790 (earlier OBD-I code=36), from what I have read, is the 'killer'. It states that code, when coupled to ratio error codes, means you have to assume that it is an internal mechanical problem. It doesn't seem in the cards that an hydraulic problem is the explanation.
A 2004 trans manual gives several possible tests to consider doing when you have the 1790: shift lever position and shift lever signal; consider software upgrades to the control module and check for any technical service bulletins... but barring something positive from those, you are left with looking at the internal mechanical situation.
Given the cost/magnitude of the rebuild pathway I would suggest finding a good trans shop and see if they can find anyother solution short of removal and rebuild. It is too bad you can't catch up with the shop that did the previous rebuild.
Roland