got new gas cap last night..oem style because my fuel trims went crazy with different levels of gas in the car...full tank id see numbers like -18 and when almost empty id see lean...gas cap was bad. ran car for an hour last night and she looked good. drove for an hour this morning and good....drove now and +7 fuel trims and now this code and lack of power....dont think the computer is letting it go into power enrich mode.....is this the gas cap or something else