I searched the forums but could not find which code reader works on Volvo 740 1991 non-Turbo engine.

Can someone advise which code reader they use for their older Volvos?

I am looking to buy from http://shop.oreillyauto.com/codereaders.aspx# so a model from their selection would work. Alternately, if you have a link to a reader on some other website which has a better product at a similar price, I would appreciate that too.

Please note that I am a part-time DIYer. (I attempt to DIY, but will take the car to a professional if it would take more than simple instructions.)

 

You do not need a scanner to read the codes on that car. See following link to learn how to pull them.

http://www.troublecodes.net/Volvo/