last night i underestimated a"puddle" and had water up to my glove box for ahour. got it out and it started up fine. now it idles and revs up smooth. but when i drive it, it loses all power unless my thottle is all the way pressed or just barely pressed. nothing in between. it will run fine again after 3500 rpms with no power loss at all. i have checked all plugs, new air filter drained all fluids plus fuel tank. new mass air flow sens. i tripped the codes and it reads nothing, check engine light is not on. any ideas?