Audi S3 8L Cam Shaft Sensor/ Starting Problems "Help"

[Ben_Kaighin]

Hi Guys,

Need some help again.

The story is that my S3 had a cracked head so the garage have fitted a new one. Once they put it all back together they said it started up straight away and ran very well. But then it developed a fault and will only start 1 in 5 attempts. They have scanned the car and the fault that comes up is Cam shaft sensor below threshold. So they fitted a new sensor but this hasn't solved the fault, they then took the cam cover off and checked the timing and tensioner etc and it is all ok.

Any ideas what the problem would be?

I just want my car back now.

Thanks in advance.

Ben

[00161wj]

I'd say that the cam chain hasnt been set correctly. You have to space the chain 16 links apart between the two pulleys if my memory serves me correctly. Dont take that as gospel though!

[Ben_Kaighin]

Looks like you could be bang on, I called the garage today and was going to mention your suggestion but they said it first, apparently it is currently only 15link between the pulleys. They have ordered the tool the need to correct this which should come on monday so we will know for sure then.

Thanks for the help and fingers crossed it sorts it.