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The mkiv Supra Owners Club

why do i get fuel cuts?????


squiffy
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i have a 2nd decat and hks filter and i am running standard boost, but just after the car changes in to 4th (bout 120leptons) i get the big warning light and engine management light on and the fuel cuts.

used to just be a bit of hesitation but now just cuts.

It happened last night in 3rd at about 100 leptons.

 

i cant see why its doing this:search:

 

not sure when the car had its last service but is going in for one in 2 weeks. would a new fuel filter and plugs cure this?

 

cheers

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i have a 2nd decat and hks filter and i am running standard boost
Standard boost even though it's half decatted?

 

What max boost do you get? At what boost pressure is this fuel cut happening?

 

used to just be a bit of hesitation but now just cuts.
that sounds like maybe the 180kph speed limiter kicking in.

 

would a new fuel filter and plugs cure this?
Could be plugs. They can cause hesitation once the boost is raised
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I'm pretty sure sustained 0.9bar is enough to trigger it. Is it quite a violent complete loss/regain of power?

 

If you're reaching those boost levels then its a good idea to do some of the other BPU mods such as plugs, fuel pump, fuel filter change, etc.

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I'm pretty sure sustained 0.9bar is enough to trigger it. Is it quite a violent complete loss/regain of power?

 

If you're reaching those boost levels then its a good idea to do some of the other BPU mods such as plugs, fuel pump, fuel filter change, etc.

 

ok fair enough, yes its a sudden violent loss. sometimes without the warning lights, then a short pause until i get the power back

 

all on the to do list homer!:thumbs:

 

cheers guys,

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