Vacuum Line came off
 

My check engine light came on my 2006 9-5 wagon and the code was P1110. I noticed the small vacuum line that connects to the turbo pipe to the firewall had come off. I re-attached the little hose and the problem was solved. I should probably replace it since it was a bit brittle. I hope this helps.

Replace with silicone if possible. Rubber gets brittle, yet I went for years with silicone hose that had been as good as new.

The check engine light is also known as malfunction indicator lamp (MIL). It shows when having a glitch in the electronic control module of vehicles. Commonly, the check engine light is positioned within the instrument console. In some older vehicles, the check engine light was referred to as "engine" or "trouble", which demonstrated small problems including overheating or flat oil pressure inside the motor. The check engine light is usually of golden or reddish color, and there are two types of it:

enduring check engine light - indicates minor situations
flashing check motor light - is triggered when there is a serious problem in the engine.

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Flashing Check Engine, Check Engine Codes, Trouble Codes, OBD2 Codes, Diagnostic Codes - EngineServiceLight.com

Hi guys, I just bought a 2001 9-3 2.0,

I noticed it had the engine light on so i plugged my obd reader into and came back with the P1110 code, I have been reading and see it could be 1 of 2 things would i be correct?

Now i do not know if this is related or not but the car was sitting for a while as far as i know and when i start it from cold there is a bit of blue smoke comes from the exhaust..Could this be related or does that sound like a separate issue?

I have wanted one of these for years as i used to have a 900 Turbo back in the day and i had the chance to pick up the 9-3 at silly money and its a decent body on it...I just hope i can bring it back to life.

Thanks in advance.