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1997 Mercury Grand Marquis LS 4.6L MIL Lamp on
This vehicle runs well but check engine light comes on with o2 code indicating rich. Sensor is after catalytic. Front sensor reads high & low, but rear will go rich occasionally at idle. Question is, how does it see rich if front sensor movement is proper? Any...
FIX posted 6/23/2004
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Related Documents & Media | VIN | 2MELM75W4V |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0175 | Fuel System Too Lean (Bank 2) |
Message Closed w/Summary
Vehicle Data
1997 Mercury Grand Marquis LS
| VIN | 2MELM75W4V |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0175 | Fuel System Too Lean (Bank 2) |
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