On the last pass Sat. nite the timing decided to retard 4*every thing else stayed the same. Eric any ideas as to why and how to keep it from happening again.
Explain a little more. You had 4* of knock retard, or the timing setting itself changed?
If the timing setting changed, then the memory in the powerlogger may have been corrupted for some reason.
The only thing I can tell you is to remove the Powerlogger and re-clean the edge connector on the ECM. Hopefully that will solve it. If not, we may have to look at the Powerlogger.
