Cbogartjr
New Member
Hi, I have a 2009 CTS V with 40K miles. Love this car. My V started miss Firing on one bank. Tracked it to wiring harness 20790399, which is discontinued. Did fix the harness and it work for a short time. Then started misfiring again. I have spent 16 hours researching this part. Tried Ebay, Amazon, Car-part.com., emailed several recyclers and called others. All to no avail. Does anyone have any other suggestions?
