Make sure you are plotting AFR commanded Hi Res., so that the scanner can calculate the error between commanded and recorded AFR.
Type: Posts; User: johnnydeutsch
Make sure you are plotting AFR commanded Hi Res., so that the scanner can calculate the error between commanded and recorded AFR.
This is just a shot in the dark, but try disabling your p0121 test under the general section of engine diagnostics by setting max to 100, and min to 0. I had this problem with my 408 with the 90 mm...