Hi all,

Just wanting some advise on a problem I'm having.

My car has just started to surge and shutter on peak boost. I've noticed the boost jumps around erratically. Also from anywhere between 1-10 psi it isn't pulling and slightly feels like it may be shuttering a little. You really notice it at peak boost, about 15 psi.

I have a '99 WRX, done about 227000kms and the only mod is an after market boost controller.

Any advise would be appreciated.

Cheers,
Brent

AFM would be the first thing I would check.

What type of boost controller?

Is there anyway of testing the AFM or is it just a case of replacing it?

It's a Turbosmart boost tee, manual controller. I've had the boost controller on for a while now with no problems.

For sure it is the air flow meter. Sounds like a classic case

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MY93 Impreza GX 1.8L, 0hp, 0nm

Get a known good one, swap it in, see if it makes a difference. You can clean your current one with circuit board cleaner (not degreaser or carby cleaner or WD40) and you might get a few more months out of it

Don't be thrashing your car around at the moment either, A new AFM is much cheaper than a new engine

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MY93 Impreza GX 1.8L, 0hp, 0nm

If you do need a new AFM , I bought one yesterday in Cloverdale = he sells numerous Genuine Air Flow Meters,TPS,Coil Packs etc at much discounted prices.

Seemed like a good bloke too, Subaru AFM's are $150

Subaru Impreza MAF Genuine Denso Forester Liberty Outback wrx sti | Engine, Engine Parts & Transmission | Gumtree Australia Belmont Area - Belmont


Same guy sells on Ebay too( with good feedback there) this below will be the AFM you need

http://www.ebay.com.au/itm/Subaru-Im...item43b4b57898

Thanks for the info and help. I'll be making some phone calls and doing some research tomorrow.

I got my 99-00 AFM from Mao at Evolution R for $135.

http://www.perth-wrx.com/vb/evolutio...-subaru-8.html

EDIT: Genuine as well

Oh damn...... well I know where to get parts from in future then!