EFI and a fuel knock.........

[Huw Powell]

> Heres a trick. Get yourself the longest screwdriver you can find, and start
> the motor. Pick out a noisy area (if unsure, start with the head/intake
> manifold) and firmly touch the screwdriver to it...

Or, buy a $10 stethoscope made for such tasks.  Handy tool to have. 
Makes your engine sound like there is no oil in it!

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/