I have a 2008 Audi A4 2.0T FSI Quattro.
I have been getting CEL P2293 for 4 weeks now.
I just replaced the High Pressure Fuel Pump Sensor, but the problem persists.
People have said its the cam follower, but the dealer says it's the Fuel Pump.
The cam follower I can do on my own for 1.5 hours in my driveway for cheap.
The dealer will give me a 50% discount if I choose to replace the fuel pump. (Totaling ~$270)

However, the PSI on the fuel pump is 56/60 (the dealer says)
It doesn't seem to me 4 PSI should be very bad at all.
Is the dealer just trying to make money off of me?

Should I do the Cam Follower? Or the Fuel Pump?
Or both?

I have 9 days left on my warranty. Which is when I assume I will lose the 50% discount.

Details of problem: During high RPMs the turbo cuts out and comes back over and over again. Then the CEL comes on with P2293 and will go away after about 30 hours.
The problem will repeat the exact same way if I rev at high RPMs again.

Are those 2 things my only options? Or is there something else??

PLEASE any help would be so appreciative!!
Thank you in advance!!