Help after maintenance work was done

[birdii]

Last week i got my timing belt, water pump, cover gasket, Power Platinum BKR6EGP, MSD Sparkplug wires, fuel filter and pcv valves changed…. Before the all the new parts I was getting 300 - 315miles on a full gas tank…. I had 1,3,and 4 spark plug wires swimming in oil so I had the cover gasket changed…. Now with all the new parts installed getting im 215 – 230miles on a full gas tank… when the car was scanned nothing came up… I don’t know why this is happening… can gapping the sparkplugs wrong causing this?

thanks

 

[bryce]

yes it could be , i say recheck the gap of the plug before you do anything else and make sure there not the wrong gapping