orangemuffin

Hi Guys,

Hoping you can help.

Car in question is a 97 wrx wagon. Not highly modded in anyway, in fact it's only upgrade is a pippercross panel filter.

On driving up to islands and junctions slowing down at low revs i am finding the car losses power and it one instance just cut out. It's only cut out on once but normally after a bit of throttle the car will jump back into life....with maybe a bit of slight juddering.

Any idea's ? on other cars i'd be looking at maf / coil pack / fuel filter / intake etc...and just ordered a fuel filter to tick it off the list and i only had all the intake side of things off 2 weeks ago when fitting the new filter.

Anyone else had this ? common fault ? Had a search and couldnt find anything conclusive.

JDM_Stig

iTrader: (3)

IACV needs a clean from the sounds of it

orangemuffin

ahh, good shout ! hadnt thought of that.

Will do....cheers buddy.

piehole1983

iTrader: (7)

I had exactly the same problem with mine, terrible idle, cutting out with the addition of no power too. I found a couple of vacuum leaks and repaired them to no avail. I then reset the ecu using the connectors under the dash which completely sorted everything out. Almost a week on its still going perfectly.

orangemuffin

Hi mate, cheers for that....

how do you re set the ecu ?

orangemuffin

Actaully, just had a search and found it.....black and green connectors right...

cheers, will give it a bash.

piehole1983

iTrader: (7)

Was just looking for it myself! The easiest way is disconnect the battery for an hour or two but I managed the reset using the plugs. Took 5 minutes and made a world of difference!

piehole1983

iTrader: (7)

You should actually read the fault memory before resetting the ecu. Might give you a code that could help diagnose your problem. Reset it after that!

orangemuffin

ah, ok, cheers mate.....will do.

Its actually in the garage today having a few minor bits done so will ask them to hook it up.

piehole1983

iTrader: (7)

It's probably best to reset it every time you do anything with the engine like air filter changes, plugs, fuel pressure changes or general servicing. That way the ecu gets a chance to run everything properly.

orangemuffin

awesome mate...really thankful for the help.

Very new to impreza ownership so learning as i go.

piehole1983

iTrader: (7)

I've owned mine for 9 days, learning everything the hard way with it lol

orangemuffin

ecu re set today, seems to have done the trick !

cheers mate.

piehole1983

iTrader: (7)

Nice one!! Glad my limited knowledge of these things has helped someone already. Hopefully it works as well for you as it has for me. Mine is going like a new car!

orangemuffin

well i let it idle for a good few minutes then took it out for a drive and maintained 40/50 for as long as i could and it seems a lot smoother and it has the response back it was lacking. Hasnt cut out or spluttered at me at all or cut out.

New fuel filter on to so it must all help.

Cheers again.