Hey I have an 2002 that has a fresh rebuild, new goerend converter and a suncoast valebody. The tranny is stuck in limp mode. I have replaced both of the sensors on the valvebody put a dtt voltage regulator, and tried a different ecu, and the prolem is still there. I get codes for high and low pressure. The actual govenor pressure is reading 109psi and stays there and never moves according to the MAC dignostic computer i've used on it. The target psi goes up with speed like it should. The gov pressure voltage is .76 volts. I don't know what else to try doing. Thanks for the help.

 

Try Suncoast. 109 psi needs a resistor to reduce voltage to normal range for PCM from the transducer. Should have come with VB. On the other hand may just be defective VB.