Earlier this year I purchased a 2002 base Boxster with Tiptronic with 101,000 miles for a daily driver. It took a couple thousand to get it road worthy but the purchase price was low. It was run okay until several weeks ago the transmission began to slip during my commute. I brought it home in the trailer, changed trans fluid and filter. During subsequent test drives the slipping appears to still be present although not as bad. I decided to put my Foxwell scanner tool on it and the transmission is not throwing any codes. However, I did get misfire codes from the DME which is new. This car has been throwing emission codes regularly which I've researched and that's probably from intake and/or vacuum leaks. I've cleaned the AFM and that helped idle but it still threw the emission codes. Note that I have changed the AOS.
So several questions here...
If the torque converter or some other transmission component is failing with the transmission computer throw codes?
Could I be misidentifing the misfiring as slipping?
Bottom line, I rather not swop the transmission (or replace the torque converter) when what I really need to be fixing is the misfire.
Thanks for your input!
Note the metalics in the photo from the transmission sump prior to fluid and filter change.
