2002 silverado 5.3 idle

[04silverado6.0]

I made some changes to a 2002 silverado with a 5.3 and btr stage 3 ls1 cam. Before it had good driveability and no surging but had a rough idle in park. I raised the idle spark from 18 to 22 and set the o2 mv to 450 to try and get rid of some fuel smell. Now it is surging rolling to a stop, im thinking this is it trying to relearn from being flashed on the bench. Here is the original and new file.

[kevin87turbot]

Your VE table looks suspiciously low at idle. Post a datalog when you can. Oh, and retore the original O2 sensor switching points.

[04silverado6.0]

It fired up and ran today with no surge and no change. I guess it was a issue with being flashed and resetting adaptives.

[[email protected]]

U running a speed density only tune? forcing open loop?

[04silverado6.0]

It is in sd, im only working on getting the idle stable and sounding good. It is running fine now.