I was getting a cylinder #2 misfire error on my wife's 2012 Edge 2.0 EcoBoost. This weekend I changed out the spark plugs (thanks to this post) and used Motorcraft SP537 as replacements. Now it is giving me a P0299 (turbo / super charger underboost) code. I could feel the hesitation in the engine and could tell something wasn't right. So, this morning I decided to remove the plastic cover and make sure I didn't miss plugging something back in and pushed on and wiggled the connectors just to make sure, but everything seemed to be correct. I drove it to work after doing that and it feels a lot better, but I will have to wait till I get home to clear the code again.
Could this be a spark plug gap issue? From what I've read, the SP537 should be a direct replacement, although I have found a lot of misinformation online. Does anyone have another idea of why this just started after changing the plugs?
Thanks for any help!
