Yuck Fou Motorsport

the last two evenings on the way home from work I have noticed a poor idle at traffic lights, the engine almost stalls then hovers from 250-1150rpm until I'm moving again...

MAF sensor by any chance?, I have also switched back to the standard air box and bined the cone filter...

Where can I order a new MAF sensor from?.

Cheers,

Jon.

Gidney&Knowlesy

more than likely to be the MAF........though check ISCV, 02 sensor as well.

zhastaph

Bout 70 quid from your local friendly Subaru dealer, it's exactly the same MAF as fitted to the MY99/00 uk spec car, though I'm sure the dealer will argue the toss.

Just a point of note, had a similar problem on mine 99 STi, revs leaping but it only happened after having been razzed, it turned out to be the O2 sensor.

Though the MAF woz fooked too.

RRE

The same here, problem also turned out to be the O2 sensor.

As soon as you ware driving no problem, just a sligt hesitation around 3500 RPM. Changed the O2 sensor and all was jolly. There was'nt any "check engine" ligt comming on, but the ECU reported errors on the O2 sensor if you did a check.

ChrisS/P1

I'm getting the MAF replaced tomorrow. I'll make sure they check the O2 while I'm there.

Cheers

Chris

RON

Try cheam motors, 0208 3942262 part no 22794AA010, at least thats the no for the UK my99 and my00 ones!!