My old engine in my Honda Civic had 240,000 miles and was burning a quart every 3-4 days, plus I took out my radiator, so I picked up an engine at the boneyard as now would be a good time to swap out the engine. "Great Runner" they said, I swapped it, and it has been a great runner the last 2 days. Over 40 mpg, but the IMA light comes on and IMA assist doesn't always seem to work. I checked the 144V power plugs to the engine and they seem secure. I never had this problem before. What else do I need to check?