hi all,
i just went to Wollongong from Sydney today. on the highway with up hill,20-25% flatting on acc pedal, car speed around 100km/s - 110km/s, i always get fuel cut when injector load at 25%-30% (4-5psi on boost), when the issue came, injector load down to 0% then back to normal, sometimes injector load will up to 40%-50% then down to 10% then back to normal. (i got this info from greddy informeter touch). engine will not stall, just got one second fuel cut then back to normal and continue speed up.
when i keep rev up with 20%-25% flatting on acc pedal, after the car got fuel cut and restore back, it will happens again after several seconds. i need to release my right foot then depress again to speed up again.
i just did the main maintenance, change all oil/fluids, new plugs, transgo kits, hiflowed turbo (with EBC runs 17psi), turbosmart kompact, kn oil filter, new fuel filter, constant 12v on stock fuel pump (just blew the walbro pump), 4 new tyres (same size) for about 10000kms (actually there is no shudder when driving on flat highway over 100km/s or brake)
there is no problem if the road is flat or 10% flatting on acc pedal (absolutely it is going slow down when on up hill road).
after back home, i scanned with consult3, there is no error code.
i am not quite sure when i have this problem but i just found it today, LOL. (there is no much up hill highway in Sydney...)
may be the problem is stock fuel pump doesn't contact 12v? any ideas? or time to get emanage?