Urgent help

I have problems with an Alfa Romeo 145. The Check Engine was lit and I need to identify the fault code and then erase it. I don't have the diagnostic instrument. Can the operation be carried out without the instrument? From Yá very grateful

hi how are things. What displacement and what year is your alpha?

Year 97 'and the displacement 1.6

Check Engine always refers to a bad combustion, is activated by a sensor that adds the exhaust gases so the failure should be either in the injection system or the primary electrical system, you would kill you that the checks, at times it is something as simple as a change of spark plugs or cables. luck...

hello.
The injection system of your car does not present the OBDII diagnostic management which is the standardized system for a breakdown. There must be a diagnosticator substed by the representative, or take it to a specialized technical service to submit it to a revision. To all this, have you noticed any change in the operation of your engine?
Tell us.