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1999 Mercury Villager Estate 3.3L MIL Lamp on
Posted to Ford Driveability on 12/19/2007 7 Replies

I replaced the rear 02 sensor and of course the problem is still there. Scan tool reads a constant .300 volts, even after 10 minutes of driving. Power to the heater circuit is good, but at no time will the computer ground the heater. Tested front 02 sensor and...

7 Replies Received (View Replies)

  Related Documents & Media  1999 Mercury Villager Estate

 
Message Closed w/FIX

car Vehicle Data

1999 Mercury Villager Estate

VIN 4M2XV11T9X
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0138Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
P0139Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
Message Closed w/FIX

car Vehicle Data

1999 Mercury Villager Estate

VIN 4M2XV11T9X
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0138Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
P0139Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response