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yes ! i have the stock one。

hi guys! still got the same problem happened. i change the vacummtube by connected it to the oem bov with harder tube and about 40MM length to avoid pressure change. still the same. then i changed the fuel regulator to a bigger size one still noting helps. I started to think is it the problem of the injector?failure at certain pulses? thanks guys.i will attach logs later.please help me out.

Thanks guys! I will try to get my hands on the hoses and retune my fuel map immediately.those informations helps me a lot.i think I know where the problem is and quite looking forward to get it fixed.

Hello!guys!Would you please take some time to help me solve the problem.it had been a headache to me for a long time.Thank you very much!!My car is 06 Subaru WRX has those mods below:ECU LINK G4+ XtremeGarrett GTX3076RManley 83 mm crankshaftCP 8.5:1 cr pistonId1000cc injection and fuel railPerrin front intercoolerCosworth cams intake 278 exhaust 272Dual valve springJE1.3 cylinder gasketARP cylinder headstudsThe problem is when I do full throttle pull or small throttle cruise the afr reading is gonna jump around at 3000RPM which can cause lean condition. Above or below this rpm will be fine.Attempts have been made such as change the fuel calculation model or the injection timing, fuel injection delay, or target air-fuel ratio change. This problem is still there.I've been trying to solve the problem for months,my God.it's killing me.I hope you can help me figure out what's wrong about the settings!Again.Thanks guys.Log and ROM attached! yy (2) (1).pclr Log 2017-08-13 6;59;00 pm 3 wot.llg