Gtr Lazy Revving When Accelerate? A Funny Soundfrom The Exhaust Too?

[GD51LA]

I was driving just before and my car was not runing right...

It would hesitate to accelerate and a funny sound would come from the exhaust (bwaaaa) almost like it wasn't firing or something, the boost stayed normal?

This isnt the first time, It doesn't miss fire/pop or anything, it just took allot longer to rev out??

[DVS JEZ]

Have uchanged anything lately?

Pull the plugs out and have a look at there condition.

Also drop the catalytic converter and check it hasnt melted together

[GD51LA]

Checked both, they ate fine..

[17psi r33]

i would check fuel pressure and filter make sure it actually getting fuel there, and when my air flow meter plug was a bit lose i would get the same problem, with inacurate readings from your flow meter this would cause the car to either not run or run really rich. but from the sounds of what you have discribe that so sound like your cat even though it is fine. verry odd.

[The Bogan]

Coils

[R31Nismoid]

Mate its about time you took the car to a decent workshop to get it checked out.

All your threads seem to point to one thing - you car has issues, they need a professional to look into.

[DVS JEZ]

Mate its about time you took the car to a decent workshop to get it checked out.

All your threads seem to point to one thing - you car has issues, they need a professional to look into.

[GD51LA]

Mate its about time you took the car to a decent workshop to get it checked out.

All your threads seem to point to one thing - you car has issues, they need a professional to look into.

mate, i have been to four mechanics, two of them rep tuners, two of them searched for the problem with obviosly no success, that cost me $400, $200 each.

so im trying to find the problem myself...

[GD51LA]

fuel pressure is ok

could it be the coils? even though it doesn't missfire/pop?

[SS8_Gohan]

when my car had issues with the stock coils, it sounded like a wrx, ie dropped a cylinder. That very distinctive boxer style rumble.

could be coils i suppose.

have had you compression/leak down tests down? checked timing belt? etc...

[DVS JEZ]

Power fc. Or try a mates ecu. Try a mates CAS

[hypergear]

One or more turbos is missing some of their ceraimc turbine wheels?

[DVS JEZ]

From what i can gather the problem isnt always there?

[zebra]

it also still makes boost.

sounds almost like a leaking intercooler pipe or dodgy afm

[GD51LA]

boost is always there, that would mean the intercooler is fine, right?

[kristafa]

check your cat mate..

[R31Nismoid]

mate, i have been to four mechanics, two of them rep tuners, two of them searched for the problem with obviosly no success, that cost me $400, $200 each.

so im trying to find the problem myself...

Mate you can't even describe the problem in accurate detail, troubleshoot parts or anything.

Im not having a go at you, but honestly people can keep throwing suggestions at you for the next month and you'll still not get it fixed.

There are decent workshops in each state for this type of thing. Failing one there is always a 2nd choice.

Now i find it hard to believe you've been too two reputable workshops - not tuners - workshops. This is a mechanical issue unrelated to the cars tune.

[mattymagoo22]

check your cat mate..

I second that, if the cats internals are damaged it can move around and sometimes block the exhaust and other times allow everything to work fine.

[SS8_Gohan]

Checked both, they ate fine..

he has checked the cat

[mattymagoo22]

Just a quick one and no i'm not being a smart ass but check there isn't something preventing you from getting wide open throttle, like a car mat or the like? has happened before and not getting 100% throttle opening could be what you're experiencing. Good luck hope you figure it out.