please help, im getting ses code 507, have noticed whene pulling to stoplight, rev. is high downshifting into 1. and it takes about 5 to 7 seconds for idol to drop from 1000 to 650 at full stop. i have cleand maf, and IAC, new air filter, only thimg new is i lost the honeycomb filter during last maf cleaning, but i read its not needed with a strait flow air intake with factory resonator. it idols fine, and no noticible problems at driving speed. i just cant live with the ses light on. anny help will be greatly apreciated