Yeah so I ran the car without the fan plugged in at all for about an hour, idle dead stable at around 1100, doesn’t fluctuate, doesn’t change based on distance driven so it’s definitely the fan affecting the idle pretty badly. I had no idea the fan was independent of the ECU, if I can get the switch...

Yep, done a sniff test now, no head gasket leak. The tps has been replaced and I’ve driven it around for 50 miles with the brake servo vacuum line disconnected to eliminate the servo leak from the suspects list even if it’s still a problem, idle was still just as unstable and the cooling fan was sti...

Head gasket was replaced 11 months ago following a 6 month long hellish search for whatever was causing my severe idle problem, it was the gasket. The cooling fan has been running constantly since well before the gasket was changed. Fast forward to today, until last week the car was almost impossibl...

I need to update this post with some very useful information for whoever may need it in future. I wrote a very long post detailing all the information we had gathered over the past few months but it never sent for whatever reason Essentially as a quick summary, if your R8 came out of the factory wit...

The pulley has marks on it that line up but I guess I'll have to pull it off and have a look underneath another day

itcaptainslow wrote: ↑Tue Jun 24, 2025 4:31 pm Is the crank sprocket timed up correctly?

There was a picture of it (the pulley) in the album I uploaded but only one picture displays on here, but yes I believe it is

Timing looks like this, don’t know if anyone else is able to comment but that looks pretty alright to me, looks like the inevitable is due

The ideal fuel to air ratio for efficient combustion 1:15 parts of air. This would suggest that the ECU is matched to the throttle body, as a smaller T.B passes a smaller volume of air in a given time and there are no carburation issues going on behind the throttle butterfly valve. Makes sense, wil...

Right see that makes more sense, I was always under the impression that the 56mm throttle body was a waste of time if you already had a 52mm because they performed the same, by the sounds of it that isnt necessarily the case at all. That being said, since it doesnt seem to have been asked before, if...

Not sure to be honest, I have had the car back for 5 months at this point but have yet to have checked timing because I assumed since it was done very recently it must have been right, can definitely have a look though