rb20det hard to start and missing under load 6000+rpm

callumr32

New Member
hey guys have a 1993 r32 skyline with a rb20det. was running fine had no issues until a few days ago. cars being hard to start will start for a second then turn off and just keep cranking then it may or may not start. when the cars running it drives fine until I'm on boost and it comes up to the 5000+ range and it starts to splutter /misfire. any ideas? mods:
38 mm external wastegate
3"straight through exhaust
front mount
r34 turbo
splitfire coilpacks
Gtr igniter
had a new AFM not too long ago
11psi

had all these mods for ages and had no issues
cheers any help appreciated :)
 
Ignition amplifier, ecu, fuel tank and or pump are all things I've changed on my rb20det. No missfire issues anymore.
 
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