Hi everyone. Having an issue with my 2000 S40 with 202,000 miles on the car not keeping an idle. It will not start unless i give it gas nor will it stay running unless I keep giving it gas. I replaced the IAC in February and it fixed the lumpy idle and didnt have any other issues until yesterday with the idle. Also with this problem it seems that the DSC light on the dash is on and the fan stays running when you shut the vehicle off for a good couple minutes. Does anyone have any suggestions where to look? Thanks for taking the time to help me out.

 

Ok just got back from Auto Zone and these are the codes that came out. P0128, P0505, P0031, P0037, P0014 and P0102. If anyone out there can pin point this for me if you had a similar situation. I guess I can start by cleaning the throt body and MAP sensor. from there I guess I can check the coolent temp sensor and replace that since thats the cheepest on the list.