????? Wtf i need help car is runnin wrong!!

[LuckyGTR]

OK heres my story

bought a gtr from member here

fully built (apprantly)

neways
car dident started for 7 month wen i went to get it and it had a 1/4 gaz tank

i drove couple of minute wit the old gaz and then towed the car home

i flush the gaz and putted 94 octane

still doing the same thing

went over there did a compression test 165 compression across all 6 cynlinder!!

and car is runnin 90?% should i say on idle (idle really good but kinda shaky a bit)

Car runnin Map no more Mafs

ween get into boost car miss fire and go on 4 cynlinders or what ever cant boost well it boost 3-4 psi then miss fire

i changed ( fuel filter ) (plugs coil pack ingnitor coil pack wire )( i had those parts spare and still in good working condition from my last gtr so no worrys(fuel filter is new)

and still doing the same thing

car runnin a TOMEI stand alone wit a hks EVCR


any help?

i have spark i have gaz? ignition was like new

could it be the ECU tune

and because the car got tuned wit a 20 degree outside temp and now its -15 lol


i need help guyz

[Skym]

Rough idle can be due to running engine running rich at idle (wideband in exhaust can tell you if this is the cause) or using too thick oil (found this out with my car). In some cases MAP sensor can be faulty or dirty due to blowby deposits.