Can anyone relate or has anyone ever heard of their OBD port not working? I bought my 2005 G6 (base model) back in 2017. Now she’s got 220000mi on and really just needs shocks & struts... The port has never worked though, been to multiple dealerships.... They want to keep the car and figure it...

so I have a 2005 Pontiac g6. right now it has a four-speed automatic transmission however it is on its last leg so I will need to replace the transmission. I do not want another automatic though. I would like to put a manual transmission in. I am trying to do my research because I don't know a...