markwild

I've hit it twice in the last 2 days (at least I hope thats what it is (engine loses all power for a second at peak boost, then comes back))

How many people with increased boost have removed FC and HOW ?

(My AFR and knocklink show all OK, so seems a shame to turn it down )

Mark

StickyMicky

mine wont fuel cut
i dont know why, but ive never ever felt it

and i once ran on 1.43 bar
i didnt mean to tho

felt amazing

my mates, fuel cuts all over the shop

markwild

Holy Moly !!!

I'm going to turn it down another quarter - Hit cut last night, turned down a quarter at lunch time, but hit it again in 5th tonight, so......

Mark

911

Went through all this game 2 years ago. My STi V3 boosted to 1.6 bar! God, sure went well, but fuel cut was evil.
Fixed it all at Power Eng with a Blitz boost controller, now run at 1.3 bar/314 bhp and all is well.
Graham.

PICKLE

It's the cold weather thats allowing the car to run more boost!
Great fun until you hit the cut limit

WREXY

StickyMicky,

The car has to stay over the boost limit for a few seconds, I think it's 5 seconds, for the fuel cut to engage.

Cheers,

George.

paul_davies

So what's the bang and hesitation when it hits peak boost? Mine does it too!!

WREXY

It's the effects you feel after the ECU cuts out the fuel due to too much boost. Feels like sudden braking, even though your foot's still on the gas peddle.

Cheers,

George.

paul_davies

Sorry for hijacking your thread mark!
As I am running standard boost is the soloution a fuel cut defencer or a boost controller (to enable a controlled rise and eliminate spiking) or both?

WREXY

If you're running standard boost and you keep hitting the fuel cut, there is a problem. Your boost solenoid and pipes are probably contaminated with oil, (from even slightly overfilling the engine with oil), and need cleaning to rectify the problem.

Cheers,

George.

tporteruk

Kept happening to me (Sti Version 3) - just had Dawes fitted to control boost spikes - works a treat now (peaking as standard with de-cat at around 1.1/1.2 bar).
Was dubious about Dawes but to stop spikes it is perfect.

markwild

Paul , Not sure about any 'bang'

Is this a physical noise, or just and expression ?

Mark

WREXY

I took it as an expression. You know, bang on the brakes.

paul_davies

No! A genuine bang (well, loud pop)

markwild

hmm - dont remember mine doing that .... Could be fuel in the exhaust, maybe - Have you a recirc or ATMO d/v ?

Mark

paul_davies

I have the standard recirc, I'm going to clean out the hoses at the weekend as wrexy sugested otherwise I'll be ordering a dawes device to see if that fixes it.