S6 missing on 2 cylinders

[audi660]

Hi guys,

My car is dead on cylinder 3 and 5.
I've checked all 5 coils and plugs and the spark is good, all the injectors are working too.
It fires up but if you disconnect injector 3 and 5 there is no difference in idle.
I'll do a compression test but the motor has only done about 400km.
Any ideas on what to do?

[Greg_S]

You said the spark is good. Have you tried swapping the power output stages for the coils to see if different cylinders are affected?

[audi660]

I've got the 034 coils so no pos units

[piotr]

How did you tested the plugs ?are you 100%sure that under the load they are producing good spark ?
Just swap them around and see if the fault is migrating with them .