Does this all look ok? Back in October engine blew! Still owe on my Yukon. And no warranty. Fast forward, new engine, new shocks, new starter. Took my car to GM because I had a PO711 code and they changed the harness. Once I got my car back it went into shock. Engine light came on and the sensors were going crazy along with my fans running. Mechanic reset computer. It’s driven 500 more miles with nothing else. Should I be worried?