Looking on input for return-to-idle issues. 6.0L/M6, 231/239 .62x lift, fast 102, 799 cnc ported heads. 896 PO1 PCM. Engine wants to die when car is rolling and I let off the throttle. In the log, you can see identical situations at 4:15 (engine tries to die) and 4:58 (engine returns to idle perfect). Everything is virtually the same including IAC, timing, AFR, map, MAF, cylinder air mass.
STFT higher at 4:15, injector pulse width @3.4 vs 2.9 @ 4:58. Please have a look and give guidance.