p223700 and p031400 faults

[sannasully81]

Hi, 

Hi have audi a3 2014 2.0tdi sline. It suffers with a starting fault. (Intermittent) car turns but sticks then after 2 or 3 turns it starts. Drives fine.

I'm having error codes p223700 and p031400.  

The camshaft position sensor has been changed the belts etc have all been changed. Oxygen sensor has been changed. 

My fuel flap doesn't lock. I'm thinking I may have an electrical issue. 

As stated the car maybe fine for a month or two. If I adjust the heaters that work fine it's like it can make the fault happen. 

Any suggestions ? 

 

Thanks in advance