I have a 1995 3.1 with the 4t60e trans and i replaced the vacum modulator and the the trans convertor is locking up in 2 gear. I took it to the trans shop and there where 2 codes, the camshaft/crankshaft bank 2 sensor 1 and the tcc error code. What would be the best solution to fix because i have to take a trip to texas next month and i dont want to get stranded. How hard is it to replace the sensors in trans.