crwdns2934241:0crwdne2934241:0 Rob

crwdns2934249:0crwdne2934249:0:

Your newer 850 96&97 will need a obd2 scan tool reader to get the check engine codes. The plug in port is below the ash tray under the coin holder. Your older volvo is an obd1 and codes can be retrieved  by a blinking led light.

I think auto zone stores. will check the codes at no charge.

Bob

crwdns2915684:0crwdne2915684:0:

open