1994 Buick Regal 6 cyl Front Wheel Drive Automatic 150K miles
Could someone please post a scan of a diagnostic flow chart for a cod P1640 on a 1994 Buick Regal with a 3.8 engine? I would like to find out what the quad driver that's throwing the code actually controls so I can troubleshoot the problem and not replace parts that do not need replacing. Thanks for any help.
Saturday, January 24th, 2009 AT 1:47 AM
