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1998 Mazda 626 DX 2.0L MIL Lamp on
Customer brought car in about a month ago with MIL on with the same code(P0421). I had reset the ECU and had him drive the car. The code came back on again after couple of thousand miles. I checked O2 response, ECT sensor, fuel pressure, vacuum leaks, spark pl...
Summary posted 2/19/2003
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Related Documents & Media | VIN | 1YVGF22C9W |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Multiport, Distributorless |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Message Closed w/Summary
Vehicle Data
1998 Mazda 626 DX
| VIN | 1YVGF22C9W |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Multiport, Distributorless |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Video