Error code help please

[Paddycfc22]

Hi. I am having lots of problems with my polo 1.2L s60 2012 plate.

I have error code P0341 and P0068 coming up on my reader so I changed my camshaft sensor for a new one then today I started the car. It started then the idle bounced up and down then 20 secs later the engine cut out. Went back out and the car won't even start now

Anyone know what the issue could be I've had nothing but problems with this 3 cylinder and I really hope it's not something to do with the chain that I got replaces 10000 miles ago

Thank you for any help

[iichel]

Did you re-scan the car after the sensor has been replaced? MAP/MAF sensor might be defective.

Check wiring to the cam sensor and MAP and MAF sensor
Check for air leaks
Check the MAP and MAF sensor
Check the N80 valve (evap purge valve)
Re-learn throttle body