Hi everyone, I’m hoping to get some advice on some issues. I’m having with a sonic I just purchased. It is a 2013 LTC hatchback, 1.4 turbo and automatic transmission. With 180k miles


it shows the following codes: P0097, P1101, P2199, P00F5, P0068, P0101, P0106, P0172, P0299


The car runs and drives, but idles rough and doesn’t do well when driving close to 70 mph.


I have familiarized myself with the common PCV issues with the car and I’m hoping to get some tips or advice from others who have been able to fix similar codes.


The previous owner said he put a new PCV valve on it less than a year ago, and it seems that there is no vacuum leak within that currently


I did check inside the intake, manifold system, and found out that the check valve inside of there is gone, which is also a common failure, and have a new intake manifold coming in tomorrow. That being said, I hope, but highly doubt that that intake manifold will fix every one of those codes.


previous owner also said he put a new MAF sensor on last year, but I’m not sure how to test to make sure that sensor is functioning correctly or not.


any tips, tricks, guidance or opinions would be greatly appreciated

 

after the manifold repair...clear out all the codes and post the ones that return.

 

UPDATE: after replacing the intake manifold, and clearing the codes, almost half went away. The ones that came back are:

P0096
P0097
P00F5
P0172
P1101
P2199