P0171 and P1171 codes help!
 

So... first time tracking my Turbo GT86, car worked great all day, no issues whatsoever, but... when i was leaving the parking lot to go home this 2 codes appear after leaving the car on neutral on a downhill for a couple of secs. System too lean and the other one im not completely sure of what it is, might be throttle position alignment or something like that...
Any inputs of what this might be and how to fix it? Appreciate any help.

bump... anyone?

Check for leaks, check clamps, clean your MAF.

Check your tune as well possibly.

+1 on what @2016 Camaro SS said

check hoses for catch cans intake ect

check for exhaust leaks/cracks and at or near 02 sensors for leaks cracks

check cat has not disintergrated blocking exhaust