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2002 df140. So i left the key on for a few days and it killed the battery. Put a new battery in and now 4-3 injector code and a misfire. Wiring, injectors, etc test out good even tried another ECM with no luck. I have 3 days of testing in this thing. Upon reading similar issues of this happening, im convinced i have confused or lost sensors tripping out my ecu. One post had the identical problem, but he never followed back at the end to say how he fix it. So question is there any recalibration or reseting i can do without the proper diagnostic tool? Has anyone seen this happen?