Hi all,
Wanted to get some suggestions on troubleshooting fuel cut problem.
R32 GTR
Mods:
-Blitz Access ECU
-T517Z 8cm turbos
-full exhaust, no cats, HKS Hi-Power
-Greddy/Trust Dumps
-Blitz Intake Pods
-ARC Blow Off Valve
-Larger FMIC w/ Piping
-Stock Fuel
-Stock Boost Restrictor still intact. 10lbs. of boost.
-Stock boost controller
Symptoms:
When going full tilt, turbos will spool, and boost will build. Will rev to 4k then bounce as if it's hitting the rev limiter around 4500-5k rpm. I can hear the BOV "sneeze" multiple times. 1st gear can hit close to redline then bounce the tach needle, 2-3-4-5 gears going full throttle will display the aforementioned symptoms, build boost then bounce the needle at 4.5-5k rpms.
Other than that the car drives flawlessly around town.
Any suggestions as to why this can be? Fuel upgrade? Bad coils,CAS at higher RPM? All of the above...