I thought it was only my car that did it! Oh well at least I know not bother forking out £90+vat to Subaru for a replacement then. CHeers!

 

Yeh thats what Paul said to me aswell. Mine never does it under load but when cruising at about 4500rpm I get knock readings of about 60-70 and the cel flashes.

 

Seems a lot of us have a knock problem when cruising or coasting down. Have you looked at your readings on the graph when it happens? Mine look like an instantaneous large spike i.e. a huge vertical line with no width to it at all.

 

No I havent mate but next time I go out in the car I will take a look.

 

Interesting....I've seen alot of factory knock indication at the bottom left of the map on my car, especially when it is warming up for some reason. Its all off boost and there is no other indication of knock so its not det, but something vibrating at the right frequency and intensity to trigger it.

 

I wonder what though?

 

Honestly not sure, doesnt happen on the 96UK Turbo we have.

 

And nothing corresponds on the knocklink; when its real det you see an indication from both. The IAM is permanently on 16 and no correction on the fine control map, so although there is a knock indic, the ECU seems to filter it.

 

possibly piston slap Andy?

Simon

 

That would be a candidate, but its not audible and the engine looked nice when I put it back together (cross hatching evident on bores etc). Standard cast internals as well. Be interested to see if you see anything similar (you got something in the post).

 

oops I need to visit the post office too!

Thanks
Simon