My Rb20det (r32 skyline) starts as soon as the key turns but it's running rough and has no power or acceleration especially when climbing hills. I notice the following symptoms:
- rev limiting (fuel cut) @ approx. 3000rpm sometimes lower on higher gears
- idle is steady
- when afm is removed doesnt go past 2500rpm
- in neutral only revs up to 4500rpm
- strong smell of fuel from exhaust
- no change to engine when removing 1 or 2 ignition plugs
- got a code 21 error and sometimes the exhaust temp sensor light will flash briefly
THINGS I'VE DONE TO RESOLVE THIS:
- replaced fuel pump (Walbro 255) but its really noisy.
- replaced filter filter
- cleaned afm with brake cleaner
- changed ignition coils to r35 (vr38dett)
- as per above removed coil ignitor
- flushed oil and radiator, but both are leaking
- checked compression, avg. 225psi each cylinder
- sonic cleaned all fuel injectors (fixed one leaking and one with bad spray pattern)
- fuel pressure approx. 40psi (aka 3kg/cm3)
- replaced iridium plugs with copper and gapped to 0.8mm
all stock, except 3inch turbo back exhaust, and ignition coils/igniter
Any help is appreciated. thank you