Cyl. 3 miss fire code po303

Is it a quad 4 id replace both coils and the module. u can take that ciol plate off the engine ground the plate to the engine with alligator clip wire take an extra set of plug wires ad put them on the coils and the spark plugs start engine pull #3 wire n c if it fires at plug first if not check at the coil still no spark replace that coil. how ever if u have spark but still miss #3 swap injectors 2 and 3 c if u move the miss to #2 if not its prolly mechanical and quad 4s r know for failing

My money would be on the coil cover, especially if it had been a long time since the last tune up. it is certainly worth trying, as this is part of a routine tune up anyways. good luck!