Shift solenoid b

Soooo. P0758 Shift Solenoid B Electrical is the code that my tacoma is currently throwing. Went ahead and replaced solenoid b as well as fluid. Unfortunately the light comes on randomly. Just came on after 2 weeks of vehicle running fine after repair. Before repair, light would come and go and vehicle would run fine or not depending on the light? Not too sure what angle to attack from next. If anyone has any clues I seriously appreciate the input. This is a 1996 2.7l w/ 114k

 

P0758 Toyota Description Shift solenoid valve 'B' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.

Read more: http://www.engine-codes.com/p0758_toyota.html