Replaced oil cap and will still not idle. Unfortunately, I do not have a scanner to check the codes. The check engine light was on before i replaced the cap and now the DSA light is now. It really does not want to run. Any suggestions?

Is replacing the oil cap the only thing you need to do? I have the same problem as mentioned above with my S40. It will also not idle, it just stalls when you take you foot off the gas pedal.