svance7787 Posted December 1, 2010 Report Share Posted December 1, 2010 Need to locate this chip. Discussed the location of the upgraded chip with a dealer and was advised the part was discontinued. Need help because the service engine light comes on and with installation of the upgrade gas mileage should improve. Link to comment Share on other sites More sharing options...
BodybyFisher Posted December 1, 2010 Report Share Posted December 1, 2010 Need to locate this chip. Discussed the location of the upgraded chip with a dealer and was advised the part was discontinued. Need help because the service engine light comes on and with installation of the upgrade gas mileage should improve. try googling it, I found this http://www.oehq.com/oeparts_ACD16266762_ACD.htm See this, its very important and describes the code and chip http://www.caddyinfo.com/howtop039.htm Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted December 2, 2010 Report Share Posted December 2, 2010 I've found that you can get GM parts from Amazon.com. Do an Amazon search on the GM part number. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
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