Hi guys, I am hoping someone can help me out here. I have a 1968 Camaro with a 408 LS and TH400 transmission, no VSS, no A/C, and an LS3 DBW throttle body.
I am having an issue where anytime it returns to idle the RPM dips down to about 400 and sometimes will stall out before settling back to my set idle of 700 in drive and 650 in park.
One of my issues is I have no VSS so I am not sure which parameters will help me out here since vehicle speed is always 0.
I attached my tune file and a log of this happening. You can see where I will give it a little rev and then it dips down after.