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2002 Ford Crown Victoria Police Interceptor 4.6L Poor Idle Quality, Misfire, MIL Lamp on
Posted to Ford Driveability on 1/6/2010 5 Replies

this cab has a rough idle, worse in gear. will set a p0301 code, and both cat codes. fuel trims at idle long term (bank 1) -12 to -19 and (bank 2) is +20. both o2 react to added fuel and induced vac leaks, however if egr is opened only bank 1 reacts? there are...

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Message Closed w/Summary

car Vehicle Data

2002 Ford Crown Victoria Police Interceptor

VIN 2FAFP71W02
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle
Misc.Cab

Trouble Codes

P0301Cylinder 1 Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/Summary

car Vehicle Data

2002 Ford Crown Victoria Police Interceptor

VIN 2FAFP71W02
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle
Misc.Cab

Trouble Codes

P0301Cylinder 1 Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)