L-Trim Disable request on MAF calibrations.

[civicRSA]

On the South African Civic Type-R MAF calibrations, L-Trim has always been disabled right from when the ecu was first supported.

My request is, will it be possible to do this for Euro Civic Type-R MAF calibrations? Even better could you add an option to disable/enable L-Trim?

I have not found a good enough reason to request this before but lately with new MAP fuel tables for the MAF calibrations it can be rather frustrating and S-Trims vary a lot from day to day.
More importantly at WOT the AFR can also vary with an L-Trim that keeps adjusting.

[Hondata]

We did not disable the long term fuel trim on any of the AFM calibrations. Are you thinking of the race calibration, which does have long term fuel trim disabled?

[civicRSA]

I guarantee you on every single South African Civic Type-R (FN2) that I have tuned on a AFM calibration L-Trim has never worked.
I only mentioned it once to Doug a few months ago but I never pursued it as I prefer to tune with L-Trim Disabled.
Note that I did try this with the secondary O2 sensor on and off.

I am attaching 2 calibrations and 2 datalogs. note the dates. This is one of the first cars I tuned and one of the last. The latest calibration /datalog is from a AFM Hybrid tune. The hundreds of AFM calibrations I have between those and on all releases of FPM, L-Trim has never worked on this vehicle.

Also note that L-Trim always works on the Euro Civic Type-R AFM calibrations.

[Hondata]

Then the long term fuel trim might be disabled on the stock ECU. If you can return to stock and do a quick datalog it would verify this.

[civicRSA]

Confirmed. With return to stock L-Trim is still not working.
This is really strange.
Anyway would you be able to add this option into the Euro Type-R AFM calibrations? It is going to help a lot with the new hybrid tuning method.

[Hondata]

Some ECUs do not support long term fuel trim - the JDM and (now) the SA ECUs. I really don't find that the long term fuel trim is that useful.

[civicRSA]

Neither do I. :) please allow us to disable it on the other maf calibrations.

[beaugus]

Any update on this issue? still waiting for this feature to become available to sign off on my hybrid tune.