Warm Start Lean Condition

[Evan214]

My car leans out really bad (20+AFR) when I turn it off and back on after driving it for any period of time. I have to let it set a few hours in order for it not to occur on start up. My ECT/IAT compensation for the temperatures during the warm startup are zero'd out. When datalogging during the issue, IAT.c% and ECT.c% show 0-1% in the display section. I am running closed loop, and S.term/L.term correction values are also 0-1% range.

-Does not occur ever on cold start (starts rich, leans out to expected range)

-Issue disappears 30 seconds or so after holding the RPM's higher or driving around, after that afrs return to expected range at idle (ECT.c%/IAT.c%/STrim/LTrim still at 0-1%, same as when issue is occuring, so I don't believe its a issue with my tables)

-Issue does not disappear unless I hold RPMs up a bit - at a stop, or driving. Then after it resolves, If i cycle the key even for 2 seconds it returns (not sure if heatsoak would occur that rapidly?)

-Fuel Pressure is good during issue

-Usually doesn't occur for first two weeks of summer when I pull car out, but then it sticks around until I store the car later in the year (even during cooler nights and into late fall when temperatures are cooler)

I have two datalogs, one of cold start, and one of hot start, I can get one at idle when car is warmed up next time I get it out. Normally hits 20-21 AFR, this datalog only hits 17-18. Just wondering if someone can spot what I am missing here.

Thanks!

[Spunkster]

If you have zeroed out the fuel compensations for IAT and ECT then that would explain why it is doing this as they are there specifically for these conditions.

[Hondata]

Why no closed loop operation? I think it is injector dead times, but the calibration would help.

[Evan214]

Believe it was heat soaked Injectors incase anyone encounters same issue. I replaced them for ID Injectors for other reasons as well and this cleared up my issue.