1998 Mazda Millenia S 2.3L MIL Lamp on
Vehicle has what appears to be a classic converter efficiency issue. What puzzles me is when watching both the front and both the rear O2 sensors on my Modis in scope mode, it appears both rears are switching almost identical to the fronts yet it only sets a b...
FIX posted 2/22/2008
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Message Closed w/FIX
Vehicle Data1998 Mazda Millenia S
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1998 Mazda Millenia S
VIN | JM1TA2224W |
Engine | 2.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |