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Just to follow up on this thread, i've had the EGR valve blanked off since February and the engine has not made a single shudder in that time. It's %100 EGR system *related*. Right after blanking the unit, the engine still shuddered in an identical fashion. But, with after an ECU reset, the problem ...

I came across the diesel crew blog a couple of months back, they do great work.

I hadn't read that article word for word, will look over it in detail at some point and see if it rings any bells.

Cheers

Quote from the Wikipedia EGR page : "Though engine manufacturors [sic] have refused to release details of the effect of EGR on fuel economy, the EPA regulations of 2002 that led to the introduction of cooled EGR were associated with a 3% drop Hi Pitrack, Thanks for your input. http://www.iaeng.org/...

i was reading on subaru website that they have revised the diesel engines for the forester in the outback and have adjusted things like timing and turbo. not only have they got better fuel economy now, claimed 6.0l/100km! which is nuts but there is a good chance if they have revised the motor they ...

G'day Cihan - welcome to the forum! Thank for the welcome Bennie. I'd think Subaru already understands the problem and knows the solution, it'd be down to cost minimization at the moment. First they'll try to 'ECU flash' the problem away, and then they'll replace the hardware in the worst cases. I ...

Hi guys, My 10 Outback has had the shudder since day one, now nearing 50,000kms. Averaging 6.4-6.7l per 100kms (indicated) over that time with better economy at hwy speeds (70-90k) than freeway speeds (100-110k) on average. I have been testing the engine with the EGR unit plug disconnected for ~300k...