Technical Service Bulletin
01 - Campaign Bulletins
00-01-005 1999-2000 Sonata V-6 Mass Air Flow Sensor Connection - Campaign 039
1999-2000 sonata V-6 mass air flow sensor connection Campaign 039
Engine vibration transmitted to the MAF (Mass Air Flow) sensor electrical connector wiring harness may cause an intermittent MAF sensor electrical signal interruption, which may lead to low speed engine stalling on some 1999 and 2000 model year Sonata vehicles equipped with 2.5-liter V-6 engines. The MAF sensor connector wiring harness is secured to the air intake resonator on vehicles producedthrough May 29, 2000. The following procedure reduces the vibration transmitted to the MAF sensor connector by changing the sensor wiring routing and mounting position from the air intake resonator to a new air intake hose clamp.
In addition, the MAF sensor connector female terminal pins will be packed with corrosion inhibiting grease and the ECM (EngineControl Module) on all 1999 and 2000 model year Sonata vehiclesequipped with 2.5-liter V-6 engines will be reprogrammed, usingthe Hi-Scan Pro, with new logic to reduce the likelihood of low speed stalling if a MAF sensor signal interruption occurs.
I would take this to the dealership and have them check this
Tuesday, May 29th, 2007 AT 5:04 PM