The scanner says "Insufficient coolant temperature for closed loop fuel trim" Has anyone else had this code after installing the hypertech 160 stat? I also notice on the scanner that my coolant temperature stays at 167-168* with the new stat. Thanks in advance for your replies.

 

Here is a list of ODD II codes, the list gives me the same code, but I can't tell you how to fix it. I run a 170 stat and don't have any problems.

http://www.obdiicsu.com/Docs/DTC/DTCData.html