Nistune Forums

On the stock Z32 fuel maps, they go leaner than stoich (15.xx) for most of cruise. Is there a reason for this? Better MPG, some EGR thing, etc.

Has anyone changed this (richer/leaner)? Why? Like the results?

Just noticed looking over the calibration and was curious.

Economy, its a lean cruise mode.

those values are bogus values and can usually be found in closed loop areas.
(so the ecu aims for stoich, whatever the value in the map is)

the Z32 ECU can not run anything leaner then 14.7 AFR, unless you change the K-val or latency to incorrect values

-Eric