So the truck cranks over fast and strong when cold. When warm the truck struggles to turn over, very slow wa wa wa wa then kicks over runs great. Seemed like a timing issue so I resest it the proper way. No change, put a ground strait to the starter no change.battery and starter are new. Only thing I can figure is a temp sensor is telling ecu motor is still cold, but I don't know where to begin. Any help much appreciate. Truck runs strong just has a warm start issue. Thank you