Ltfts after power loss?
Ltfts after power loss? Just wondering if anyone knows if I would have to set my ltfts all over again after having a dead battery? If so, do the values on my handheld still apply, so I can simply just re load my modified tune? Or do the values (-10 in my case) not reflect the values in the pcm anymore. Do I have to return the values to 0 manually and then back to -10, or simply just reload the tune with the saved values. I am not sure if my question is clear?
Once you disconnect the battery, you will reset the trims but your tune still remains. So if your tune commanded -10 LTFT, then it will still do that afterwards. You don't lose the tune, it just might take a little bit of driving for the pcm to re-learn the trims and have them showup correctly. So if you see odd trims at first, don't despair and try to tune it out. Let it learn back the trims then re-evaluate.
