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Old 08-27-2021, 10:51 AM   #19
MotoX16
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Drives: 2017 Subaru BRZ
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Well I got new plugs in it last night and it seems to have fixed the issue. Drove it around a bit and didnt feel any missing/hesitation like before. Now I'm leaning one of two ways.

One, the mechanical issues are fixed, and the maf had been leaking for a while. If air was leaking out from after the maf and tuned like that, then the computer would be adding more fuel (positive trims) to compensate for the extra air the engine is seeing now that the leak is fixed.

And I had one or two etune files that were pig rich, like filled up my catch can with e85 rich. Idk how that happens but before and after the etuning process my catch can collects very little. During tuning it overflowed with what seemed like much too liquidy to be oil. Causing an early demise of my plugs, although they looked alright I could notice the side tips had rounded a bit.

Also my ID1000's measured at 900cc flow, so maybe that injector data has been off in the tune file, not sure what its supposed to be but they all matched and flowed well. Conclusion, just needs to be retuned now.



Or two, the problem is intermittent and just didnt show its face last night. It rained and temps cooled down a lot. Will continue to drive and take logs as I'm not entirely convinced everything mechanically is sound.

Logs from last night:
Idle - https://datazap.me/u/motox16/826-idle?log=0&data=24-30
Cruise - https://datazap.me/u/motox16/826-cruise?log=0&data=30
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2017 Subaru BRZ PP
FBM Turbo Kit: GTX3076R - HRI FlexFuel Tune - 3" Turboback Exhaust - ID1000cc Injectors - Walbro 485 Fuel Pump - FBM Oil Pan - FBM Oil Cooler - Killer B Oil Pickup - FBM Catch Can - FBM Radiator w/Fan Shroud - Clutch Masters FX400 - Verus Clutch Fork/Pivot - IRP Shifter - Cusco Engine/Trans Mounts - RCE Yellow Springs - PS4S 245/40/17
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