OK, engine built, and bedded in, I have done 1300 miles without going over 3,000 rpm
I get smoke in idle but I think this is unburned fuel because the map isn't set-up properly yet. Driving the car clears this.
My main concern is an oil pressure fault I cant seem to solve then it can go for its map.
What happens once the car has been running for over an hour and got pretty hot is that I get an intermittent oil pressure warning.
When driving over 2,000 RPM (but under 3k of course) this fault never occurs,
When idling this fault also never occurs.
When driving between ~ 1100 RPM and 1900RPM after a 10-20 seconds the oil pressure light comes on. When I take it over 2000RPM, within 5 second it goes off.
When the fault first comes it might not happen for a while but once the car has been running for 2 hours+ it happens constantly when you are in the above rev range.
the engine is not noisy, and drives smooth and as expected.
I have since fitted a new oil pressure switch, which didn't solve it, then a new oil pump and pick-up pipe (the last one was clean though, but just to be safe).
The problem remains.
Here is a video :
Audi S3 1.8t oil Pressure Fault - YouTube
Sorry the picture is a bit small by the time I rotated it to be the right way and uploaded it to youtube it ended up like this.
Any ideas ? could it be anything to do with the fact that its not yet mapped for the turbo and injectors ? is it possible the new sensor (bought from BMS) is also faulty ?
My mechanic and my friend both suspect its an electrical problem throwing the warning because there is no sign of problems with the engine. the car has been stood for 4 months waiting for parts and having the work done.
What does everyone thing please ?
Thanks.
/edit, its been on VAG com at various times and never logged one single fault.