When you time the V6 to 10 degrees with ECM in diagnostic mode, should the computer advance the timing more after it is reconnected?

I have a 3.4 PR swap and the computer is advancing the timing quite a bit. I have had to back the initial timing down to keep the engine from pinging.

quote Originally posted by Rick 88: When you time the V6 to 10 degrees with ECM in diagnostic mode, should the computer advance the timing more after it is reconnected?

For sure.

quote Originally posted by Rick 88: I have a 3.4 PR swap and the computer is advancing the timing quite a bit. I have had to back the initial timing down to keep the engine from pinging.

Is there a functional EGR?

The EGR appears to be in very good condition but I don't know if the EGR solenoid is. How can I test them both? Sometimes the engine runs great and other times it stumbles. More so when it is up to temperature. I have retarded the initial timing to 8 degrees but the computer advances it to what looks like 14 degrees.