Help! R33: Weird Issues.

[Mullett86]

Having several (annoying) problems with my R33. It's a series 1 turbo manual, bought it about 2 months ago. It had:

Exhaust

Turbosmart 2-stage boost controller

BOV

It now has:

Exhaust

FMIC

Turbosmart 2 stage

New coilpacks (they were causing a misfire)

K+N pod

BOV removed and replaced with a stock one

Bosch 040

And it has a few issues.

1) overboosting. With the wastegate acutator hose directly to the intake pipe, it'd get an extra couple of psi at 5k rpm, and it would loose power, like it was struggling against something.

2) Loosing power at mid-throttle at cruise, say 4th gear trying to pull up a hill. Boost goes up, car feels like it's being held back.

I've tried with and without the boost controller connected, and it behaves in exactly the same way. I'm stumped, this is my first Nissan, and so far it's been a pig Is it possible that the FPR is sad, and it's leaning out? Would this cause the boost to INCREASE? And sometimes it runs like a dream, sings out sweetly to the redline with stable boost. Just not very often.

Any help would be great guys, cheers.

RM.

[cheez]

And it has a few issues.

1) overboosting. With the wastegate acutator hose directly to the intake pipe, it'd get an extra couple of psi at 5k rpm, and it would loose power, like it was struggling against something.

2) Loosing power at mid-throttle at cruise, say 4th gear trying to pull up a hill. Boost goes up, car feels like it's being held back.

if ur running the hose to the actuator directly to the intake pipe, are u talking about the piping that the runs to the cooler pipes or are u talking about the intake pipe for the turbo itself? if its to the turbo intake pipe itself then ur wrong. it should run from the intercooler pipe to the wastegate actuator.

another thing that might be the cause is the cam angle sensor, check to ensure its plugged in correctly.

also check for any intercooler pipe leaks or vac leaks.

[Mullett86]

Yep, from the standard reference point on the factory cooler pipe just before it goes under the tray.

I put the timing light on it yesterday, I think it was on the 2nd notch from the left? It seems to have 6 notches. Also, do you need to jump a connection to properly check the timing on these? If so...which one? And which timing mark should it be lining up to?

Cheers, RM.