Rich Mixture - leaky injectors, excessive fuel pressure and sluggish or contaminated O2 sensors, bad spark plug, dirty/bad MAF sensor.............and on and on.
__________________ '07 Japanese XLE I4 (Heated Leather, VSC, Mats), Dual Exhaust, K&N Air Filter, Mudguards, Modified Front/Rear Emblems, Lip Spoiler, MTEC 4,750 K High, H9 Low and Fogs, Painted Fogs, Chrome (GS300 Wheels, Pillars, Hybrid Grille, Lower Grille, Trunk Accent, Door Handles), Wood Steering Wheel, Red Out LED Tail lights, Eyelids, 19MM Rear Sway Bar, Front Strut Bar, LED Signal-Heated-Power Folding Mirrors