Quote:
Originally Posted by steve99
That probably means your port and direct injection is not scaled correctly.
Assuming your maf scaling is ok and its not due to wide temp variation at lower rpm due heat soak.
I am assuming its gone all one way ie plus or negitive at the lower load rpm ranges where the big shift from direct to port was done
If your kean you could adjust the "injector flow scaling BRZ" (port injection) parameter up/down slightly to correct the imbalance between port and direct that easier than messing with direct injection pressure mutipliers. althout ztan did discover what he has called Multiplier C an overall direct injection multiplier
To do it correctly you would rearly need to go 100% port and correct that then go 100% direct and correct again.
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You're right, fuel trims pretty much have all gone positive during low load CL operation. This end up increasing the LTFT in OL causing it to run rich in OL. So I'd assume I'd need to increase the "injector flow scaling BRZ" value?