RomRaider

Been battling this week with our 2016 STi, Rom AE5T110V. Car was setup wit ID1000s, FP Black, Built motor, etc etc. The most recent upgrade was switching to ID1700s so we could crank things up a bit more. First issue was the Min IPW issue for big injectors on pump. Thanks to Oren that got sorted out as well as the next iissue being the Max Load. So I doubled the max load, got fueling pretty well dialed in and started working the boost control up.

So everything is all good or so i thought. Something weird is happening now, it appears to be dropping IPW/IDC once the maf sees over 4.6v. Even though MAF Volts may continue to increase as well as MAF Flow, the Injectors start to drop out and it goes lean. The only constant i can see between pulls, boost levels, and gears is the MAF Volt hits 4.6v-ish and then tanks. I find this curious as the stock maf limit is 300g/s which is also 4.65v on the maf scaling.

Speed Density would be the proper answer for this car but this rom hasnt had a patch made yet, so our next step is a larger maf housing and see if that gves us a cushion to whatever limit we are hitting.