Codes P0016 and P0017

Unfortunately, I suspect you have either a timing issue or a possible variable timing solenoid issue. Here is a guide that talks about this system:

https://www.2carpros.com/articles/how-camshaft-variable-valve-timing-works

Basically this could be caused by the incorrect oil or dirty oil. However, the fact that you have a code for both the intake and exhaust cam sensors on the same bank tells us that there is most likely something wrong with the timing.

If you just bought this vehicle, they normally have a 30 day warranty if you bought from a dealer or used car lot. Clearly a private party does not have this but you mentioned the dealer.

If this is the codes that are there, then this has nothing to do with the gas cap so I would take it back ASAP as this could be a large bill if this is timing related.

As for the sensors, I doubt that is the issue as it is unlikely that you have two failed sensors telling you the same thing. So again, the fact that you have two camshafts telling you they are too advanced or retarded tells us that we have a mechanical issue as the most likely cause.

Okay. That is good news that there are no performance issue. That tells me it is most likely a wiring issue. That is good that you are taking it back because I am sure we could figure it out but the fact that you just bought it, you should be able to have it taken care of.

Just don't let them clear the codes and give it back. If they do, at least have them document that these codes were there and they will resolve them if they return.

Thanks for the update. Let us know what happens and feel free to reply from any account. Thanks for letting us know.

Sounds great. We are here if you need us. Thanks for the update.