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Hi all,
Just some background info, I am running a ND2 MX-5 (1.5L) which has had an engine swap to a ND1 2.0L and fitted with the HKS GT2 Supercharger kit. I'm using the ECU from the ND2 1.5L and tuning with Mazdaedit.
I'm currently having issue with the fuelling from what i see the car seems very erratic (goes very rich and very lean) on and off throttle but is able to stabilize at idle. On cruise it doesn't seem to want to hit 14.7 often times hitting around 12-13 AFR. My LTFT is within 5% but there are certain spots which i think I haven't calibrated well, and the STFT goes upto +20% or -20%.
Would like to know if anyone has the MAF scaling data for the HKS GT2 MAF Housing for MX5, or maybe some tips where I should look into? I believe this is an issue with MAF scaling curve that's way off, or could there be something else?
Thanks
