Any one ever have a problem with a 97 es300 surging at idle? A foul odor from the exhaust tipped me it was running rich. With a snap-on scanner looked at the mass air flow sencor it was reading higher voltage than normal at idle, while the 02 sencor was reading lower. first thought was an inaccorate
02 sencor but the dealer insisted they have had alot of problems with iac motors, but after I replaced it the car still acted up. The problem only happens after extened criusing. Any help would be appreciated. Ken