Originally Posted by
murfie
Looks more like voltage is erratic giving you an erratic injector offset, not so much temperature based, but alternator control is kinda based on inferred battery temperature. Make sure you have a good battery. Make sure all your grounds are making a good connection. Make sure you don't have something causing a large current draw like a clogged/ bad heat exchanger water pump. Voltage may be dropping too much when the PCM tells the alternator to stop charging. It is quickly dropping below 12V, which is not good or normal.