My S3 has just developed a misfire and I'm wondering what to do next to try and resolve it!
The misfire is happening on cylinder 4 according to vagcom. I don't get any faults recorded against the engine module, I simply log blocks 14,15 and 16 and it shows up.
I've swapped the coil packs around to see if the fault moves cylinder and I've also swapped spark plugs around. None of these things have solved the issue, I've still got a misfire on cylinder 4!
I was thinking of going down the injector route next. Is it possible to swap injectors around to try, instead of buying a new one in case it's not this?
Anyone got any other suggestions?