I'm getting 5 codes on my Audi s4 and I need a little help. It's been misfiring really bad lately and I've been completely on edge. I've replaced spark plugs, coil packs, 2 02 sensors giving codes, and an icm. The car still misfires and sputters kinda bad, After I the plugs, packs, and 02 sensors didnt do the job I brought it to the dealership and they said it was an icm which I replaced but it still misfired so i brought it back today and then a camshaft (p0346) code came up randomly but didnt show up the first time they scanned it or whenever i scanned it with a regular OBDII. This is what they came up with

P0346: Camshaft Pos. Sensor Circ. (bank 2)
Range/Performance Sporatic

P0300: Random/Multiple Cylinder Misfires

P0301: Cylinder 1 misfire

P0302: Cylinder 2 misfire

P0303: Cylinder 3 misfire



My question is. does that P0346 code mean that its just the camshaft sensor that's gone bad or does it mean that the timing is already off or what?

 

Sensor is bad and not recieving a signal so the ECM has no idea where the cam is. It can not adjust the timing based on the sensor info because there is none. If your belt had skipped the sensor would still be able to send the info in regards to the cam position. So you would probably only be getting a P0101,02,03 if it were the belt or valves.

Test the sensor, Check the wires and connections.