just brought a legacy gtb. in the cold wet mornings we have been having the check engine light come on as is difficult to start.after about 2 minutes of engine running light goes out and the car runs fine. it only comes on when engine is cold, is this right/normal? have receipt for 4 new coil packs which have been replaced.any info would be helpful

 

Can you check the error codes (on an impreza there are connectors under the dash drivers side)?

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