Hello everyone, I've been a huge euro fan forever but I have only owned mkIII and mkII VW's. I'm new to this site and just picked up a 97 A4(two weeks ago), so I was trying to get some insight on my problem... I have read a lot of the other post that are similar but mine seems unique.

Codes thrown from day one
p0302 (cylinder 2 misfire)
p1250 (Fuel Level Too Low) <- Gage doesn't work
p1106 (O2 Sensor Circ.,Bank2-Sensor1 Voltage too Low/Air Leak)

The car threw the three codes when I bought it and had a small hesitation at idol and acceleration to 2300 RPM, after 2300 the hesitation would stop. I have new plugs and wires, and I fabed in new msd coils. I was hoping that would fix the problem but it didn't. I know it could be caused by the 02 sensor as well, it's just expensive!

New Code (surprise surprise!)
p0174 (System Too Lean (Bank 2)

Now the car won't start and the new code came up. I pulled injectors and they all seemed to have the same consistency. I pulled my MAF sensor and it looked spotless as well as my filter. The only odd thing I had found was a vacuum (green) that was suppose to lead to the vacuum reservoir and nothing was there.

I have read that p0174 and p1106 won't make your car not run so if anyone has had a similar problem or is just a damn good tech PLEASE HELP

lol thanks

 

Code P0174 and the misfire can be triggered by code P1106 so change the oxygen sensor first. About code P1250 (Fuel Level Too Low), are you sure that the gauge isn't working or maybe you really are very low on gas. The gas pump can be seriously damaged if you are really low on gas and so the car won't start.