| Author | Topic |
|---|
Location:
Brisbane
Registered:
July 2002
|
|
1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 09:01
|
 |
Okay im driving my car and it gets toa bout 11 psi
if you put ya foot to the floor it goes and builds up boost.. then all boost drops off... then as soon as you let off a bit it picks all the way up again.
though if u just apply throttle smoothly it goes up pretty much no worries..
is what im describing fuel cut?
|
|
|
Location:
Sydney
Registered:
February 2003
|
|
|
I supported Toymods
On probation
Location:
Brisbane, Queensland
Registered:
January 2003
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 09:13
|
|
Johal... i've got a boost controller you just buy the fuel cut defender! 
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 09:42
|
|
|
it still building up boost.. just not fully quick(and not fully just lighting up wheels)like with foot to the floor it hickups if u get my meaning
|
|
|
Location:
Sydney
Registered:
February 2003
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 09:44
|
|
|
so can you keep revving it till it passes 11psi?
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 10:23
|
|
|
till it hits it.. but it keeps "hiccuping"
|
|
|
Location:
I wanna go Hawaiiiiii.......
Registered:
November 2003
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 14:09
|
|
1j's with stock ecu's all have this phenomenon, build boost quicker on a part throttle.
I dont think what you are experiencing is Boost cut, it is much more savage than mere boost dropping off.
You shouldnt reach boost cut till about 14 psi.
Sounds like you have some sort of rich fuel condition triggered by the WOT. (This is normal - but perhapps yours is exagerated by some factor).
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 22:19
|
|
when mine was running, mine was doing the same thing.
I was told that it could be the rev limiter or boost cut but it is only running 13psi. Mine is auto though.
Actually if it is because of a mega rich mixture that could be it, because the dumb ass mechanic couldn't be bothered to refit the 02 sensor and as you can imagine my plugs were drenched!
So the only fix to Johal's problem is a fuel computer?
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1jz Fuel cut?.. i think mines doing it..are these the symptoms?
|
Wed, 09 June 2004 22:47
|
|
im thinking i might try big worms 40c FCD 
|
|
|
its a real neck jerker isnt it 