Volvo Repair: volvo 940 check engine codes, 1994 volvo 940, volvo 940

Question
hi i have check engine codes for  1994 volvo 940 non turbo . Could you please tell me which sensors i sholud replace.. i have this codes... A part[2:111,3:111,6:224] B part [2:112 5:111] please tell me what does codes mean what i should do? thank you so much..

Answer
Ibrahim, all the 111 codes means no codes in the system.  Number 6 224 is the ignition system and the code is for the ECT sensor.  Thats the sensor in the cylinder head towards the rear by the black box.  A 112 code is for the control module but I would change the ECT sensor first then clear the codes.  Let me know how it works out.  Roger