While driving after putting gas into my car it started acting retarded. Some of the problems are in first gear my rev limit is now 6500 rpms. 2nd gear my vtec wont engage untill about 6k rpm or so and 3rd gear vtec wont even engage at all. My quetion is since I went to a gas somebody pumped 87 octane in my car without asking me. Would that make my car run that bad? or would it be an ecu problem? Any help would be great.