Hey all,

My car has not been idling properly lately, for example at a red light it'll drop to about 500 rpm and back up to the regular 900.
Just changed the plugs and fuel filter so I don't think it has anything to do with that.

Any ideas ?

 

Loose or torn Vacuum, MAF, dirty throttle body.

 

Have this feeling it has to do with the famous ETM issue. I'm beyond the 200000(10 yr) free replacement from Volvo.
I believe these are the first signs and symptoms from what I've read.

 

I'm still working on the diagnosis as the symptoms have actually lessened quite a bit lately. Though I think the ETMs are a gradual thing, becoming worse over time.

My ETM (easy, easy removal on a 2000 S70) was very clean. But I've also read that resetting your battery/ETM and/or changing MAF can still do the trick. Go here before the full ETM swap. the xemodex ETM is pricey at $500-something USD but still the cheapest option I've come across.