Check Engine Error - P0113 / P0135 codes

i just replaced my clutch assembly (disk/plate/release bearing) and done regular change oil last weekend but eventually i got engine check error P0113 and P0135 which indicates air temperature sensor voltage is too high and error on heater sensor. I tried to reset the engine check error by removing the terminals of the battery then drained it for 20minutes. But I still get engine check error indicator. My engine become and warmer than the usual. help pls!

Thanks and cheers!
villhen