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1997 Mercury Grand Marquis 4.6L MIL Lamp on
Posted to Ford Driveability on 2/2/2000

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...

 
Message Closed w/FIX

car Vehicle Data

1997 Mercury Grand Marquis

VIN 1MELM74W5V
Engine4.6 L / 8 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/FIX

car Vehicle Data

1997 Mercury Grand Marquis

VIN 1MELM74W5V
Engine4.6 L / 8 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0430Catalyst Efficiency Below Threshold (Bank 2)