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2001 Mazda Millenia 2.5L MIL Lamp on
vehicle brought in for inspection. among other things it fails emission for 2 codes in computer. p0421 and p0431 catalyst efficiency below threshold bank 1 and 2. plugged scanner in and found upstream and downstream were doing the same switching on both banks ...
FIX posted 2/17/2010
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Message Closed w/FIX
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Related Documents & Media | VIN | JM1TA22141 |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
| P0431 | Catalyst Efficiency Below Normal (Bank 2) |
Message Closed w/FIX
Vehicle Data
2001 Mazda Millenia
| VIN | JM1TA22141 |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
| P0431 | Catalyst Efficiency Below Normal (Bank 2) |
Video