r34gtt rb25det neo
stock engine
turbo gt3240
injector sand 800 cc
grex oilpump
nismo waterpump
custom plenum
intercooler greddy
it should be motec m600 or fconv ?
tune for street use .
thank.
I use to have this problem I replace a spiltfire coil and twinpower hks yeh!! it can solve the problem. 100% it coilpack . when boost over 8 psi ecu will retard ignition and rich fuel then the standard coil can't spark as well.