I removed the plenum in steps so as not to warp it. Removed gasket and replaced with new one. Removed coils and blew tubes out with compressed air.Sprayed a little Deep Creap penetrant in by plugs and let sit 1/2 hour removed plugs by 1/2 turn out !/2 turn in to break away any carbon deposits. Put anti seize on all plug threads and installed the gaped plugs and torqued to specs. Cleaned intake surface with rag and solvent. Sprayed intake surface with WD40 so plenum would slide easily.Put medium thread lock on bolts and torqued down in three steps working from the middle out to 105 inch pounds. After a week driving The code showed up.The freeze frame is Calculated load value 44.31%,engine temp 203.00F,short term fuel trim bank 1 -6.25%,long term fuel trim -7.81%,Intake Manifold absolute pressure 18.60inHg,engine RPM 1903rpm,Vehicle Speed Sensor 53.44mph,Ignition timing #1 cylinder 48.5 degrees,Intake air temperature 66.20 degrees and absolute throttle position 21.57% I have retightened the plenum and got half to three quarter turn on some bolts to get to 105 inch pounds I would love to donate but I am out of work right now