There's a patch: http://simblips.dailyradar.com/story/the_sims_2_exchange_patch_download/
55 code is not an error code, it signals end of codes. If no other codes preceded it, you have no error codes.
Press the Start button on your computer then click on the Sims again, it should work :)
The 311 code can mean 2 things. It can mean that there is an encoder status that has not changed in 5 seconds. To fix this, check the line systems. It can also mean that there is a motor or belt failure.
Trouble code P0305 means:Cylinder 5 misfire detected
There is now a patch on the Sims website to fix this. If you need help finding it or installing it, see this video on youtube: http://www.youtube.com/watch?v=kkOxrK4I93Q
Cylinder 5 is missing
disconnect positive battery connection for min 5 minutes
no,but you can in the PC version
Oxigen sensor, circuit open is the answer -Got it from google
Code P0420 is: Upstream catalytic conveter efficency below threshold. Bring your car to your Dodge dealer and have them fix it under warranty. A 2003 Dodge Neon has a 5 year 50,000 mile warranty on emissions!
Trouble code P0305 means:Cylinder 5 misfire detected
Trouble code P1639 means: 5-Volt Reference (B Or 2) Circuit