2005 Chevrolet Optra with engine codes P1779, P0113 and P0327

Question

Hi. I own a 2005 Chevrolet Optra. I have a transmission problem.
It gave me the code: P1779, P0113 and P0327

Answer 1

P1779 Transmission control indicator

P0113 Intake air temperature sensor circuit high voltage

P0327 Knock sensor 1 circuit low input (bank 1)

P1779 is the main clue to the issue the vehicle has , When P1779 occurs this is a communication problem when the engine control module (ECM) and the TCM (transmission control module) does not communicate with each other, The TCM needs to know what engine control such as TPS (thtottle postion sensor) ,The other 2 codes that you have the knock sensor and intake sensor, these two sensor share a 5 volt reference with each other, its is possible that one of these sensor has shorted and effect the other sensor, which will effect the TPS sensor that the TCM module needs in order to operate correctly.You may not have a transmission issue you have a issue with the TPS,knock sensor IAT, or the 5 volt reference,The ECM 5 volt refernce need to be measure this will determine whats at fault.