Anthony Walter

Hi all I’m new to the Subaru world I have a 2001 bugeye wagon 2.0 N/A that has a stuttering at low revs 1k to 2.5krpm then what to go after that

any help would be great

NOSSY_89

Quite a few things it could be.

Air filter
Spark Plugs
Idle air control valve
Coil Packs
Bad batch of fuel

Could be other things to check but can't think of any off the top of my head.

Anthony Walter

thanks mate I have changed the the air filter already I got new spark plugs ready to go in. The engine idles fine fuel it has had shell v power in there

NOSSY_89

Might want to look at fuel pump then

Flat4x4-again

iTrader: (1)

And when you've looked at those parts, try

02 sensor
MAF sensor

jaygsi

iTrader: (46)

I would go for spark plugs. It doesn't need V Power being N/A. Super unleaded is for high performance engines with hi compression. Work best on turbo engines.

Wouldn't thought it would be coil pack, as thats normally at high revs.

Anthony Walter

thanks bud would you happen to know where the maf sensor is on a N/A impreza is??

Flat4x4-again

iTrader: (1)

I recently replaced both on a 1.5 hatch (2007) and the air fuel one as the car was kangarooing at low to medium revs. On that car the MAF slides in to the air intake by the air filter housing. Gambled on a secondhand one for £15 but get a genuine one if you can. Not sure which fixed it but all 3 did !!!

Vxr2010

try cleaning maf first , if there’s an improvement then that could be the issue , a bit of carb cleaner helps

Anthony Walter

thanks for advice all I’ll keep you posted

JDM_Stig

iTrader: (3)

You could grab a cheap VAG obd lead and actually log what's happening.