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1997 Mercury Grand Marquis 4.6L MIL Lamp on
This vehicle came in about 2 months ago. I replaced the left rear oxygen sensor in hopes of keeping the light off. The light came on for the customer 1 day later. No other codes are there. Engine runs fine. Wiring inspection ok. I haven't checked fuel pres...
FIX posted 5/5/2000
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Message Closed w/FIX
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| VIN | 1MELM74W5V |
| Engine | 4.6 L / 8 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
Message Closed w/FIX
Vehicle Data
1997 Mercury Grand Marquis
| VIN | 1MELM74W5V |
| Engine | 4.6 L / 8 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |