Volvo: Stalling out, volvo 240 dl, parallel engine

Question
I've owned a 1990 volvo 240 DL since it was new.  The car sat without running through the winter.  The mechanic replaced the starter and now the car starts fine, but stalls out when stopping.  A friend of mine tried the diagnostic code and said it read 1 3 1.

The car has 225,000 miles and I'm not sure if I want to pour money into it.  Please HELP?

Thank you.


Answer
Tom,
Have the intake system and injectors cleaned. Make sure the throttle housing get all the carbon cleaned out also. Remove it and clean it with carb cleaner. Check the fuel pressure and make sure the feed pump is working also. At this point you may need to see if you feel that it is not worth any more money.
Code 1-3-1 Engine speed signal from DI system absent on starting
Conditions for DTCs:

When starting, the ignition control module sends parallel engine speed signals to #1 and #28 on the fuel control module. The DTC is logged if the fuel control module detects an engine speed signal at #28 but not at #1.

Just have the code cleared and see if it returns.