2007 XL1200R 176 or 374 calibration ?

[hdmanillac]

Is a 374 cal compatible with a 07-13 EFI sportster ? I guess no. 374 are normally for 2014+ with multiplexed harness.

I'm interested in the lambda based AFR table cal. I'd like to get ride of AFR+CLB.

[rigidthumper]

The early ECM doesn't support the software used with the 374 level calibrations. You could switch ECM/wire harness/etc, but that would be very expensive solution.

[hdmanillac]

Ok Thanks. I keep may old harness in place.