I'm trying to find the fault with a friends Audi A3 1.8T.
The engine starts and runs for about 2 seconds before it stops.
I've taken a few screen shots from Vag Com:-
So I searched for code 17978 and read a lot of posts.
The immobilizer light on the dash comes on for a few seconds and the goes out just as it should.
I've checked the connections to the coil around the ignition barrel and if I disconnect the coil the immobilizer light then flashes. This makes me think the key is being read ok?
There are no fault codes shown in the instrumments.
I have tried to resync by reading adaption channel 00 and re-saving it.
I have tried a cold boot by disconnecting the battery terminals and holding them together for 30 seconds.
He has two keys and the fault is the same with both.
I've included these measuring blocks as they helped in another post I read.
I think one of these blocks shows if the key is matched or not but I don't know which one?
Has anyone got suggestion as to what I should try next?
Thanks in advance