trouble code question

[tobes50]

Just wanted to say hi, this is my first post. Anyways I have found these codes on my car...10, 172, 173, 176, 177, 543, and 111. I don't have a book on my car so it would be nice if you guys could help me out with these. Also the car seems to hesitate, and I can hear it whining by the fuel pump. Do I need a new fuel pump?

thanks,
toby

 

[luigisho]

The cars use either 2 digit or 3 digit codes but not both depending on the year of your car. You can look your codes up at shotimes.com.

 

[sdpatt]

Here is another very good site that also describes how to read the codes.

http://www.dalidesign.com/hbook/eectest.html