Chimneyman420
Newbie
Does anyone know if the Blue Driver OBDII Scan Tool will work for Cmp retard on my 98 Silverado c2500 with the 5.7 vortec. I have purchased a couple of cheap elm327 and car gauge pro app and dashcommand with the GM pids but couldn't get the scanner to read the data. It would show -16.1 no matter how I adjusted. So I'm hopeful this Blue driver will. Thanks for any information on this.