Thread: ses light cycle time?

splark plug extender on the rear 02 FTW

Read this:

http://www.grandprixforums.net/remov...know-7092.html

Your 02 GTP will run a catalyst efficiency test. With an O2 emulator, there will not be the proper response from the O2 when the test is run so it will throw the code. You need to have the rear O2 sensor plugged in and set to not report with a tuner.