When im driving along my car will sometimes jolt back and forward,
it feels like fuel cuts and will usually stall...but i have a full tank of petrol
And also sometimes it wont start. I think its a fueling problem of some
sort i will call mechanics in the morning and ideas or suggestions would
be great
Thanks Dave

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Silver MY03
260hp and 16psi
time for more boost

could be fuel pump, was that replaced Dave?

yeh its got a walbro in there, i was thinking that too

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Silver MY03
260hp and 16psi
time for more boost

I have same problem only just started after last service. Subaru don't know what to look for,any Ideas would be handy.
thanks Steve

Does you car have a brant?

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[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

Any CEL lights?

I found when my coolant temp sensor plug wasn't in, i had similair problems to this - it led to troublesome starts and jerkyness; especially when cold. You'll find that when your ECU isn't picking up the correct temperatures; it'll increase the mixture, turn the thermo fans on (and subsequently open your thermostat), as it thinks it's blatantly hot, when it's actually not.

Might not be the same for OBD2 ecu's.. but it was what happened with my car atleast!

Check to make sure the Fuel Pump is priming too.

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03 STi @ 280hp/1.3bar

if its got a brant system i would say its that
they tend to lose memory in the keypad module which causes the alarm to arm when driving therefore cutting the fuel pump
have you had problems entering your code?

I've had no problems when entering the code, went to mms today and I can't get in for 2 weeks so pretty fucked off at that!!

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Silver MY03
260hp and 16psi
time for more boost

I just had a look and the fuel pump isn't priming so it's the fuel pump then???

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Silver MY03
260hp and 16psi
time for more boost

The fuel pump only primes (runs) for about 2 seconds when the key is first turned to 'run' (with alarm disarmed of course).

Read these threads:

http://www.perth-wrx.com/vb/showthre...ht=brant+issue

http://www.perth-wrx.com/vb/showpost...&postcount=172

Brant module is the usual cause of this typre of intermittent surge / cut out / miss.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]