misfire after 5000-5500rpm please help

[anthog99]

hello all! this is my first post on the forum. I just bought a 2003 s2000 from Alabama (where it was tuned and drove beautifully) took it back to Utah (4500 feet elevation change) and now I am having a few issues. I have a turbo pre-spool lag time, choking out at prespool but then spooles just fine. AFR drops to 10(min). At about 5500 rpm I get sputtering and fuel cut, ( which I believe is coming from knock), a bit of backfire, but afr holds 11.7. I have been trying to learn hondata for a couple weeks now but still am very new with it. Nobody around my area tunes Honda unfortunately...
I have adjusted the fuel trim back -15% over all tables in the main setting which seems to help out with low rpm stuff. I have tried adjusting the boost selonoid duty cycle for high stuff with no luck. I am running 91 octane vs 95 which is what it was tuned on, but it is regardless running very very rich and all over the place with afr, kicking knocks over 5500rpm. I believe the car is tuned for 12-15psi, but in datalog I get upwards of 19 right before it sputters out.


the car is ap1, straight pipe, has o2, inline pro turbo, wastegate & bov, ID1000 injectors fb340 fuel pump, acura ecu w/ hondata.

like I said, I am new to this and just really want to get her running right. I have attached the log and tune file below, thanks for taking time to check it out

[anthog99]

I had a bit more time to dig into the car and wanted to post more info about it to help out... Specs are as follows;
InlinePro TurboKit
· Inline Problow-off valve
· Inline Prooil filter relocation
· 2NRWerksHigh volume oil pump
· Precision6152 turbo
· 38mm TialWastegate – internal 7psi spring
· MAC BoostControl Solenoid
· Log styleexhaust manifold
· wideband bung port
· EvasiveMotorsport T1R - 70R single exhaust (no drone)
· HondataK-PRO 3 ECU
· Injector Dynamics1000s fuel injectors
· NGK 2668spark plugs
· 5 bar MAPsensor
· AEM FuelPressure Regulator
· BDL 70mmthrottle body (intake manifold ported to match)
· Full Blown340lph fuel pump
· ARP head studs
· AP2 springretainers
· AP2 Valvecover
· Fluidamprcrank pulley
· Oil catchcan
· KoyoRadiator
· MishimotoFan w/shroud
· CantonCoolant catch can
· A/Crelocation kit
· PLX DM-6 -oil pressure, oil temp, vac/boost, wideband AFR

I have also tried putting some 95 Octane fuel in the car ( which it was tuned on) here with no luck. I just keep getting that high RPM cut out and low (10.0) afr mix when the turbo spools up. I tested the solenoid, checked for leaks in the intercooler system, even pulled and brushed the carbon from the O2 sensor- I really would like to get it going and would be happy to pay someone to tune it for me if I need to

[Spunkster]

To avoid damaging the engine, I would recommend finding a tuning shop that can put this on the dyno and properly tune it for you, as that is the only way to safely tune something like this.