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hey guys, this is my first post in hopes of coming to a conclusion, i currently have a 1998 porsche boxster with tiptronic transmission, the following problems are as follows. 1.when in parking the car doesnt stop 2.when in automatic drive car doesnt go to 3rd gear it jumps from 2nd to safe mode with a big kick 3.when left on first gear in manual mode car exhaust sound gets louder, and when letting of the gas does big kick to safe mode 4.when the car is turned on and switched to manual the tiptronic controls only lets me move up to 2nd gear. i was thinking it was the transmission ecu but it wasnt, i have tried 2 other ecu's one with the exact serial codes as the original (besides actual ecu serial) and still same problem Might it just be the transmission itself? if so where can i buy rebuild parts? and guide on how to. I really need to get this figured out any advice would be helpful, thank-you for your time :)