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Car Loses ALL power on full throtle going round a bend

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Old 19 August 2007, 05:21 PM
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gazza-uk
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Default Car Loses ALL power on full throtle going round a bend

as title,

this has happend twice to me now, standard 06 WRX, no dash lights (so engine has not stalled) just seems like some a car with electronic stability control

power return after 5 secons or so.

Anybody else had this ??
Old 19 August 2007, 05:28 PM
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Mr Footlong
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Left bends only, right bends only, or have you experienced it on both?
Old 19 August 2007, 05:30 PM
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gazza-uk
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Originally Posted by Mr Footlong
Left bends only, right bends only, or have you experienced it on both?

this occasion was a left hand bend, can't rem last time
Old 19 August 2007, 05:31 PM
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johnnyroper
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Originally Posted by gazza-uk
as title,

this has happend twice to me now, standard 06 WRX, no dash lights (so engine has not stalled) just seems like some a car with electronic stability control

power return after 5 secons or so.

Anybody else had this ??

just a thought but do scoobys have lateral g sensors on them to cut power if the sensor thinks car is unstable?
if so could be faulty
Old 19 August 2007, 05:49 PM
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That could be it, if it was the other way then I would have said are you low on fuel? common problem on right handers.
Old 19 August 2007, 08:56 PM
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nessscoob
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same as above. If I throw mine hard into a bend with half a tank or less of fuel, it shudders/cuts out for bout 5 secs or so coz of the fuel sloshing about in tank
Old 19 August 2007, 09:25 PM
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Originally Posted by johnnyroper
just a thought but do scoobys have lateral g sensors on them to cut power if the sensor thinks car is unstable?
if so could be faulty

Only the STi (MY05+) have the lateral G-Sensor, and it doesnt cut power... its part of the DCCD-A, so it shifts the power about to retain stability, it has no connection to allow it to modify throttle input like a traction control system might.

Sounds like a strange one though... if it only happens on roundabouts i would assume its only a right cornering thing. Not sure where the pickup is in the Impreza but i would be suprised if this is the cause because i have pulled some pretty heavy cornering with little fuel in the tank and its had no effect at all.

If its a MY06 car then get it back to the dealer and get them to find out why its doing it as a Warranty job because it sounds like it could be a potential safety hazzard to me.

Last edited by marmski; 19 August 2007 at 09:29 PM.
Old 19 August 2007, 09:45 PM
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scoobystiv8
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MY03 STi does it on right handers with under half a tank of fuel, but can also do it left handed if the gauge is 1/4 or less if changing direction only if pushing though.
Old 19 August 2007, 10:40 PM
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Sounds dangerous, it will give the same effect as lift off/oversteer.
Old 19 August 2007, 10:55 PM
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gazza-uk
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Originally Posted by nessscoob
same as above. If I throw mine hard into a bend with half a tank or less of fuel, it shudders/cuts out for bout 5 secs or so coz of the fuel sloshing about in tank

sounds like my problem 5 second power loss.

Thanks for replies, dit crap that it does die though.
Old 20 August 2007, 08:42 AM
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07 wrx has stability control sensors at least.. had them on my loom that is going in to my classic along with the 07 engine, altough they will be fastened at one specific setting so they wont work those sensors should let the ecu cut out power if it detects skid
Old 20 August 2007, 09:14 AM
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If it is fuelling related then a swirl pot is the usual fix if memory serves?
Old 27 August 2007, 06:41 PM
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big bad jon
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i have this problem on my 03 wrx
Old 27 August 2007, 07:27 PM
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Originally Posted by Mr Footlong
If it is fuelling related then a swirl pot is the usual fix if memory serves?


I had one of these fitted and it does the trick (02 STI)


M
Old 28 August 2007, 03:36 PM
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Sounds like a good mod to me
Old 28 August 2007, 10:46 PM
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gazza-uk
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Originally Posted by _Meridian_
I had one of these fitted and it does the trick (02 STI)


M
£190 +VAT

i'll just keep the tanp topped up
Old 29 August 2007, 03:53 AM
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I'm going to say fuel related. My classic does this if i put my foot in it too quickly around a bend and have less than 1/2 a tank of gas.

cheers
Old 29 August 2007, 08:05 AM
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It is definitely Fuel Surge.

Your engine is going very very lean and will object in the strongest and most expensive way with this issue.

It is a design fault with the shape of the petrol tank. I fixed it with the in tank Hyperflow solution available from Zen Performance.



Despite doubts by others as to whether I could actually install this myself I thought I would give it a go ... after all, how hard could it be

First job was to remove the rears seats - this makes access to the pump alot easier than hanging upside down in the boot.





Next was to remove the access cover and expose the pump top and connections.



This was all too easy apart from the main fuel pipe that had decided that it didnt want to move :x Anyway, a bit of wiggling, jiggling and general fiddling later it was off and time to get the pump assembly out - this was tricky as you have to twist it gently and take care with the float assembly.





Once out it was time to fit the new box around the pick up and drill two holes for the bracket to hold it. Once I had found an appropriately sharp drill bit this was re-assembled and time to install back in the car.





This was harder than the extraction as there was a box on the end but eventually in it went and time to connect all the hoses and put the back seats in.

Fired up first time and kept on running
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