[psyclone07]

Had a whole bunch of codes on the mustang and ended up changing both rear 02 sensors (post cats) and got rid of a 1443 by replacing the purge canister solenoid and sensor. Some people say the lean code can come from a bad precat sensor and the p0136 is usually from a bad o2 sensor post cat.

Just wondering if there could be any other causes for the p0136 just because i have already replaced that sensor. Going to swap out the rear sensors tomorrow and see if the codes swap sides if so then i can rule it a bad sensor but im not sure.

The lean code im thinking is either a 02 sensor or maybe the egr vacuum hoses are leaking possibly? need to get rid of them by Christmas in order to register the vehicle (temp plates currently) Any insight is greatly appreciated.