Volvo: 93 850 GLT Sensors, fuel pressure gauge, crankshaft sensor

Question
Ok, I was driving my car from work one day and all of a sudden it just stopped running.  I was on the freeway and the car just died.  I pulled over and tried to start it and nothing happened.  The engine turned over, but it seemed like there was no spark getting to the plugs or no gasoline was reaching the chambers.  I work 30 miles away from home, so I had my dad come and hall me away.  Well by the time my dad got there, he looked at it and turned the key.  GUESS what, it started.  I was so mad.  I ran just fine then.  I didn't trust it anymore so I used it once in a while.  The same thing happened.  Stopped in the middle of traffic, waited some time and then it starts again.  I have some codes, but I don't know where to look for the meanings of them.  Here they are: 314,324,213,214,444,132,122.
I know I can't have that many problems, my friends says its a crankshaft sensor.  Is there a website I can look up the codes?

Thank You
Pedro

Answer
Pedro,
Looks like some testing is required and that will start eith driving with a fuel pressure gauge watching to see if the pressure drops then the car stalls. While it is dead then check for spark and fuel.
In socket A6 314, 324 is cam sensor 214 is crank sensor. In A1 132 is battery voltage. I can not find a reference to 213, 122, 444.