So... long story short. I've been battling this annoying problem for a while now.
Cold starts are always perfect. I can shift into drive or reverse with no issues.
On a hot start, the car will typically go from Park to Drive and not stall. However, if I return to park and try to go back to drive... it will typically stall.
Idle air is good.... once I get it actually moving in drive it will stop and idle perfectly.
Max Effort NA 6.4L build..... closed loop is on (ran for a long time with CL off).. sensed MAP is enabled above 0.20 PR. I have also tried it with Sensed Map disabled, but I ran into other driveability issues.
I have literally spent hours and hours trying different TB tables combos. Everything is really, really good except this single issue.
0.02v - 0.20v (TB voltage) are my idles voltages. I've not found that 0.30v - 0.50v helps and these voltages don't affect actual idle in park or neutral.
It has to be lack of airflow when warm, but I have yet to consistently nail it with the TB tables.
Any other ideas?
Reply With Quote
