If it was me I'd definitely replace the spark plugs and inspect the coils/wires. I'd also drop the spare and check out the FPDM/connector, and like @tltoronto suggested take a look at the PCM connectors and wiring. Have you cleaned the MAF sensor lately? Get some CRC and hose it down every air filter change/cleaning (not sure if you have a K&N or what):
https://smile.amazon.com/CRC-05110-...8129&ie=UTF8&linkCode=df0&psc=1&tag=hyprod-20
Good luck!
https://smile.amazon.com/CRC-05110-...8129&ie=UTF8&linkCode=df0&psc=1&tag=hyprod-20
Good luck!