Originally Posted by
murfie
Gradually rev the vehicle to fuel cutoff over a period of about 4-5 seconds. When fuel cuts out, immediately release the throttle.
That's 1000-1500RPM per second. Its a very slow rev, dont rush it. It works with HPT MPVI devices, I just fixed a car with check engine light on, P0315, random missing, after a new clutch and flywheel. It took me four or five tries to get the rev up speed just right and it to cleared the code shutting off the light on the rev that I got it right, didn't need to do any drive cycle to shut the check engine light off. IThe message of success, seems to just mean position learning ended you need to start over if it didn't clear the code.