Please Help, Gtr Cutting Power Intermittently

[BlackR32]

Hi all and any,

I will try to explain as briefly as possible, I hope someone can help.

R33 GTR : Seems to loose all power intermittently, total cut (not firing at all) but picks up as if firing every now and then... if I keep my foot down on the accelerator in neutral or with clutch in when this is occurring it will rev and cut reaching anywhere around 2k.

It's not in limp mode as it WILL stall if I leave it to it's own devices, even that takes a few seconds as it struggles to stay alive.

If I baby the throttle for a minute or so the problem just goes away. This will happen pretty much every time I take the car out.

Some times when the car is cold others when the car is warm/hot, so I'm not thinking it's heat related.

the car has an impul ecu in it (just a remap), and is otherwise pretty stock. I haven't had a problem for the few years I've owned it and no modification has taken place in that time.

If anyone has any ideas or questions to help narrow in on the problem it would be really appreciated.

Thanks,

[Moodles2]

4 things I would check.

- Air flow meters (unplug them to confirm if it is or not)

- Faulty crank angle sensor

- Faulty coilpack ignitor (possibly has a poor ground)

- Faulty fuel pump (maybe blocked fuel filter)

[BlackR32]

Ok, will get onto those tonight and see what I can do.

Thanks for the advice so far.

Will post more as soon as I've had a look.