I saw in one reply to a post that the 94 has the ODBI but when I went to a link for the engine codes, it had the 960 and 850 turbo listed as ODBII. Can someone tell me which it is? I can't find anyone in Fort Wayne other than the Volvo dealer who can read ODBI and I would much prefer to get a quick scan and fix it myself. Any help wold be greatly appreciated.

 

You have OBDI which you can pull codes your self.
http://www.troublecodes.net/Volvo/
That is how you pull them and a list of them.

 

OK... thanks. I was stuck on the subheading that said 94 and later models with ODBII and then proceeded to say the 850 Turbo and 960's were ODBII. I'll stop reading now. Thanks for the help.

 

OK, got my code... thanks. The dreaded "Adaptive heated O2 sensor control".

 

Good luck!!